Tools to Reduce & Manage Pain | Dr. Sean Mackey

概览

This episode examines pain as a complex subjective experience that is both sensory and emotional. Dr. Sean Mackey emphasizes that nociceptive signals arise in the body, but the experience of pain is created by distributed brain networks shaped by emotion, cognition, memory, context, and individual history.

The discussion moves from basic pain biology to practical pain management. It covers NSAIDs, acetaminophen, heat, cold, rubbing, TENS devices, mindfulness, cognitive behavioral approaches, pacing, nutrition, supplements, physical therapy, acupuncture, chiropractic care, opioids, kratom, cannabis, and broader public-health policy.

A central theme is that pain treatment works best when it treats the whole person rather than only the painful body part. Mackey repeatedly stresses individual variability: what helps one person may not help another, and durable improvement often comes from combining education, movement, psychological tools, medical care, and careful use of medications.

分段落总结

[0:15] Guest and Episode Scope

[事实] Dr. Sean Mackey is introduced as a physician, PhD, Stanford professor, and chief of the division of pain medicine. [事实] The episode focuses on what pain is, how the brain and body generate it, and how physical and emotional pain interact. [事实] Huberman previews treatments including behavioral tools, psychological tools, nutrition, supplements, prescription drugs, heat, cold, and opioids.

[2:52] Pain as Sensory and Emotional Experience

[事实] Mackey defines pain as a complex, subjective experience that helps protect people from injury or harm. [事实] He says pain is both sensory and emotional, and that each person’s pain experience is different. [事实] He states chronic pain affects about 100 million Americans and costs roughly half a trillion dollars per year in medical expenses.

[4:54] Nociception Versus Pain

[事实] Mackey says pain is clearly in the brain, while nociceptors in skin and deeper tissues detect stimuli such as temperature, pressure, and inflammatory pH changes. [事实] A-delta fibers transmit fast, sharp pain-related signals, while C fibers transmit slower dull or achy signals. [事实] He distinguishes nociception, meaning electrochemical signals from the body, from the subjective experience of pain created in the brain. [事实] Emotion, cognition, memory, and action systems shape incoming signals into an individual pain experience.

[7:22] No One-to-One Pain Signal

[事实] Mackey rejects the idea that there is a simple one-to-one relationship between tissue stimulus and pain experience. [事实] He says this mistaken biomedical model still influences medical care. [事实] Chronic pain can be an “invisible disease,” where people may not show obvious external injury despite real pain.

[9:42] Pain Networks in the Brain

[事实] Mackey says there is no single pain center in the brain. [事实] Pain is represented by distributed networks involving regions such as the insula, cingulate cortex, amygdala, and other areas. [事实] He says researchers have identified common brain-network signatures associated with pain and are developing brain-based biomarkers.

[12:33] NSAIDs, Acetaminophen, and Inflammation

[事实] Mackey says NSAIDs such as ibuprofen and naproxen are technically anti-inflammatory and anti-hyperalgesic rather than pure analgesics. [事实] NSAIDs reduce sensitization in injured tissue, the spinal cord, and the brain. [事实] Acetaminophen is described as more centrally acting and different from NSAIDs. [事实] Aspirin can act as an antiplatelet at low doses and more like an anti-inflammatory at higher doses.

[15:31] When to Treat Pain

[事实] Mackey says the threshold for using medication is when pain interferes with quality of life, daily activities, relationships, work, or sleep. [事实] He recommends using the lowest effective NSAID dose when it helps sleep or function. [事实] He notes NSAIDs may delay fracture or tissue repair in some contexts, and orthopedic surgeons may prefer avoiding them after procedures such as hip or knee replacement. [事实] He warns people with gastrointestinal, bleeding, kidney, or heart issues to consult a clinician before using NSAIDs.

[25:28] Caffeine, Tylenol, and COX-2 Drugs

[事实] Mackey says caffeine can help headaches and migraines and can potentiate analgesic responses. [事实] He says acetaminophen does not irritate the stomach like NSAIDs but requires caution around liver function and total daily dose. [事实] COX-2 inhibitors such as celecoxib are prescription drugs that may be less irritating to the stomach. [事实] He recommends clinician guidance when side effects or medical vulnerabilities are present.

[27:29] Gate Control, Touch, and TENS

[事实] Mackey explains that rubbing, shaking, or running water over an injured area activates A-beta touch fibers. [事实] These touch signals modulate nociceptive signals in the spinal cord and can reduce pain. [事实] TENS devices use transcutaneous electrical neurostimulation to create a buzzing sensation that activates touch fibers. [事实] Mackey describes this as a form of neuromodulation.

[29:53] Swearing, Kissing, and Emotional Salience

[事实] Mackey says studies show swearing can reduce pain. [事实] He says kissing an injury activates touch fibers and may also reduce pain through positive emotional salience. [事实] He emphasizes that psychological effects are neuroscience-based rather than separate from physiology.

[35:27] Pain Thresholds and Individual Differences

[事实] Pain threshold is defined as the stimulus intensity at which pain first begins. [事实] Mackey says average pain-threshold differences exist between men and women for some stimuli, such as heat, but individual variability is larger than average group differences. [事实] Beliefs, expectations, anxiety, and early life experiences can shape pain thresholds. [事实] Increased anxiety can increase perceived pain.

[44:39] Conditioned Pain Modulation

[事实] Mackey explains that pain can inhibit pain through conditioned pain modulation. [事实] A painful stimulus at a different body site can engage brainstem pathways that descend to the spinal cord and inhibit pain. [事实] He says this mechanism may not work properly in some chronic pain conditions, including fibromyalgia.

[47:20] Heat and Cold

[事实] Mackey says the traditional advice is cold for roughly the first 48 hours after acute injury, then heat afterward. [事实] Cold reduces inflammation and slows nerve firing, which can reduce incoming pain-related signals. [事实] Heat increases blood flow, relaxes muscles, and can feel soothing. [事实] He advises using whichever works best for the person, while avoiding unsafe exposure such as prolonged icing that could cause frostbite.

[51:17] Training Pain Thresholds

[事实] Mackey says pain thresholds can be changed, especially through cognitive control, cognitive training, and exercise. [事实] He is cautious about claims around deliberate cold exposure because he says that literature is outside his main expertise. [推测] The discussion suggests that adaptation to one kind of stimulus may not automatically generalize to all forms of pain.

[56:16] Distraction, Mindfulness, and Reframing

[事实] Mackey says attentional distraction can reduce pain by engaging brain networks including prefrontal and cingulate regions. [事实] Distraction strategies include reading, walking, and spending time with friends, family, or community. [事实] Mindfulness-based approaches can help by noticing pain in a nonjudgmental and accepting way. [事实] Cognitive reframing asks whether pain is damaging, threatening, or harmful versus painful but not harmful.

[62:40] Hurt Versus Harm

[事实] Mackey calls the distinction between hurt and harm one of his key pain-management messages. [事实] He describes a tennis player with Morton’s neuroma who had severe foot pain but was told continued tennis would not cause harm. [事实] Chronic pain is described as pain that persists beyond the time of tissue healing. [事实] Mackey says clinicians still need to evaluate whether pain signals a condition requiring medical attention.

[68:29] Physical and Psychological Pain

[事实] Mackey says he does not try to separate psychological pain from physical pain in clinical care; he treats pain as pain. [事实] Pain is described as a sensory and emotional experience that must be treated through the whole person. [事实] Anxiety, depression, anger, fatigue, sleep, and social functioning are all relevant to pain care. [事实] Catastrophizing is described as a major predictor of amplified pain, worsening pain, and poor treatment response.

[72:18] Whole-Person Pain Treatment

[事实] Mackey says treatment may include education, pain psychology, physical therapy, rehabilitation, medications, and procedures. [事实] More than 200 medications may be used for pain, but few are FDA-approved specifically for pain. [事实] Pain clinicians borrow medications from psychiatry, neurology, and cardiology because they affect circuits or ion channels involved in pain.

[74:32] Nutrition and Food Triggers

[事实] Mackey says nutrition, healthy eating, anti-inflammatory diets, and avoidance of trigger foods are critical and underappreciated. [事实] He shares that after food poisoning, he developed severe abdominal pain triggered by foods in the onion family. [事实] He says repeated exposure made it difficult to identify the trigger because pain could persist for two weeks. [事实] He recommends careful food restriction, journaling, and gradual reintroduction when trying to identify triggers.

[79:44] Gut Infection and Food Sensitivity

[事实] Mackey says a paper suggested gut infection can change genetic expression related to sensitization to food antigens. [事实] He says one possible explanation is that infection sensitized him to onions. [事实] His allergist told him she sees many cases of later-life food-group sensitivities after some triggering event. [推测] The conversation frames food-triggered pain and microbiome research as an emerging public-health and research area.

[82:33] Visceral Pain and Referred Pain

[事实] Mackey distinguishes visceral pain from somatic pain. [事实] Somatic pain is usually precisely localized, while visceral pain has broad receptive fields and is often diffuse. [事实] Visceral signals can converge in the spinal cord with somatic signals, producing referred pain. [事实] Examples include pelvic pain with low back pain, heart attack pain radiating into the left arm, and shoulder pain after abdominal surgery.

[89:09] Neuropathic Pain

[事实] Mackey says pain can arise from damage to nerves anywhere along the pathway, including peripheral nerves or the central nervous system. [事实] Neuropathic pain may feel shooting, stabbing, shock-like, or burning. [事实] He says nerve-related pain can be very difficult to treat.

[91:44] Stress, Memory, and Pain

[事实] Mackey says stress can generate real pain through brain-body pathways involving sympathetic and parasympathetic systems and cortisol. [事实] Chronic stress can affect tissues and does not necessarily mean surgery is needed. [事实] Early life events and injuries can sensitize people to future pain vulnerability. [事实] Mackey says his own stress often manifests as neck pain and serves as a cue to exercise or take time away from work.

[94:43] Love-Induced Analgesia

[事实] Mackey describes a study in which people in early romantic relationships viewed photos of their beloved while receiving painful stimuli in a scanner. [事实] Viewing the beloved significantly reduced pain, and stronger passionate love predicted more pain relief. [事实] Attentional distraction also reduced pain, but love and distraction engaged different neural circuits. [事实] Love-related analgesia involved reward-related circuits such as the nucleus accumbens, amygdala, substantia nigra, caudate, and insula.

[103:41] Endogenous and Exogenous Opioids

[事实] Mackey says the body naturally produces endogenous enkephalins and endorphins that act as analgesics. [事实] Exogenous opioids such as morphine and synthetic derivatives act on opioid receptors in the periphery, spinal cord, and brain. [事实] Mackey states he is not pro-opioid or anti-opioid, but pro-patient. [事实] He says opioids can transform some patients’ lives, especially in end-of-life care and selected chronic pain cases, but can also destroy lives through addiction.

[109:05] The Opioid Crisis and Prescribing

[事实] Mackey says opioids were overprescribed in the United States. [事实] He says physicians receive very little pain education in medical school, around seven hours, compared with about 40 hours for veterinarians. [事实] He describes three physician groups: those doing the right thing for the right reasons, those doing the wrong thing for the right reasons, and a small group doing the wrong thing for the wrong reasons. [事实] He argues that fear-driven patient abandonment can push some patients toward illicit opioids.

[114:46] Illicit Fentanyl and Policy Nuance

[事实] Mackey says the current opioid crisis is largely driven by illicit fentanyl. [事实] He distinguishes prescribed fentanyl from illicit fentanyl and says earlier coding confusion blurred that distinction. [事实] He says responsible opioid use for pain should not be conflated with illicit fentanyl deaths. [事实] He supports compassionate, voluntary opioid tapering when appropriate and says some patients improve as side effects decrease.

[118:41] Common Opioids and Benzodiazepines

[事实] Mackey lists morphine, MS Contin, oxycodone, OxyContin, fentanyl patches, tramadol, Dilaudid, hydromorphone, methadone, and buprenorphine. [事实] He says these drugs broadly act on opioid receptors. [事实] Benzodiazepines are rarely used for pain, except possibly in edge cases where treating severe anxiety also improves pain.

[123:54] Kratom

[事实] Mackey says kratom is a natural substance with opioid-like properties and other effects that are not fully understood. [事实] He has heard reports of people using kratom to stay off prescription or illicit opioids. [事实] He cautions that natural does not mean safe and says overdose deaths associated with kratom are increasing. [事实] He says more research is needed on kratom’s quality, purity, dosing, safety, and effectiveness.

[126:14] Cannabis and CBD

[事实] Mackey says carefully controlled lab studies show cannabis can reduce neuropathic pain in small samples. [事实] Larger epidemiological and clinic-based studies have not shown cannabis to be especially helpful on average compared with non-use. [事实] He says cannabis products vary widely in THC-to-CBD ratios and dosing. [事实] He argues cannabis should not be Schedule I and that rescheduling would make research easier.

[132:14] Six Categories of Pain Treatment

[事实] Mackey describes six broad categories: medications, nerve blocks and procedures, psychological and behavioral therapies, physical and occupational therapy, complementary approaches, and self-empowerment through education and skills. [事实] He says combining these categories usually provides the best benefit for chronic pain. [事实] Procedures can include trigger point injections, nerve blocks, spinal cord stimulators, and implanted drug delivery pumps.

[134:25] Acupuncture

[事实] Mackey says acupuncture can help some forms of pain, though the exact mechanisms remain unclear. [事实] He mentions possible mechanisms involving peripheral adenosine receptors, different brain-region engagement compared with sham acupuncture, and needling near peripheral nerves. [事实] He recommends trying acupuncture if affordable and if performed by a high-quality practitioner. [事实] He suggests getting referrals from clinicians or trusted sources.

[140:25] Chiropractic Care

[事实] Mackey says the data on chiropractic care are mixed, with some studies showing benefit for low back pain and others not. [事实] He expresses concern about fast, high-velocity neck manipulation because of rare but serious risks such as vertebral artery dissection. [事实] He recommends asking whether a treatment provides durable benefit rather than only temporary relief. [事实] He says such therapies are most useful when they help people reengage in functional rehabilitation.

[145:24] Physical Therapy and Pacing

[事实] Mackey calls physical therapy and rehabilitation crucial for chronic pain. [事实] He says the goal is improved quality of life, physical functioning, control over pain, and the ability to do more. [事实] Pacing means setting small, consistent activity goals rather than overdoing activity on good days and crashing afterward. [事实] He says chronic pain can create fear of movement, disuse, muscle atrophy, and disability if not managed carefully.

[150:24] Supplements and Nutraceuticals

[事实] Mackey says some over-the-counter agents have evidence for pain conditions. [事实] He names acetyl-L-carnitine for neuropathic pain and diabetic neuropathy, alpha-lipoic acid for neuropathic pain, vitamin C around some nerve-related surgeries, omega-3 fish oils for chronic pain, and creatine in small pilot studies for fibromyalgia. [事实] He cautions that over-the-counter or natural substances are not automatically safe. [事实] He advises learning about side effects, interactions, and surgery-related bleeding risks.

[156:15] Pain Psychology and Behavioral Skills

[事实] Mackey says psychological treatments are critical because pain is shaped by anxiety, depression, coping patterns, current stress, and early life experiences. [事实] Pain psychology is described as skills-based rather than traditional psychoanalysis. [事实] Techniques include cognitive behavioral therapy, mindfulness-based stress reduction, acceptance and commitment therapy, relaxation, breathing, biofeedback, goal setting, and pacing. [事实] Empowered Relief is described as a brief two-hour intervention developed by Beth Darnall as an additional tool, not a full replacement for CBT.

[160:45] Digital Pain Platforms and Access

[事实] Mackey says he has spent years building a digital health platform to collect high-quality data on physical, psychological, and social functioning. [事实] The goal is to use data and AI for prediction and to deliver scalable interventions. [事实] He and Beth Darnall aim to make tools widely available for free. [事实] He notes that people outside major academic centers often struggle to access high-quality pain care.

[163:03] National Pain Strategy

[事实] Mackey says he co-led development of the National Pain Strategy with Dr. Linda Porter from the NIH. [事实] The strategy involved experts in pain research, clinical care, policy, and people with lived experience. [事实] He says his wish is full implementation of the National Pain Strategy. [事实] He says public calls and letters to legislators helped create the process leading to the strategy and can still matter.

播客点评/总结

This episode’s main value is its integrated view of pain. Rather than presenting pain as a simple signal from injured tissue, it explains pain as a whole-person process involving nerves, spinal cord, brain networks, emotions, cognition, memory, social context, sleep, movement, and policy.

A major strength is Mackey’s nuance. He avoids simple anti-medication or pro-medication positions, especially around opioids, cannabis, kratom, NSAIDs, supplements, and alternative therapies. He repeatedly asks whether an intervention improves function, produces durable benefit, and fits the individual patient.

The episode is especially useful for people dealing with chronic pain, clinicians, caregivers, and listeners who want a science-based framework for evaluating treatments. Its limitation is that many topics are necessarily broad, and some areas such as kratom, cannabis ratios, food-triggered pain, and cold exposure are described as needing more research.

[推测] The best audience is someone looking for conceptual clarity and practical decision frameworks, not a single protocol. The recurring message is that pain management usually requires layered tools, careful medical judgment, and patient agency rather than one universal solution.