Sameer Mehta

RAISING CAIN

The scariest finding in this paper: the subjects couldn't tell it was happening. UPenn ran this study on 48 healthy adults. One group slept 8 hours. Another slept 6. Another slept 4. For 14 straight days. They tested cognitive performance every 2 hours from 7:30am to 11:30pm. The 6-hour group's reaction times, working memory, and sustained attention deteriorated on a near-linear curve. By day 14 they were performing at the same level as someone who hadn't slept at all in 48 hours. The 4-hour group hit that threshold by day 6. Here's the part that should unsettle everyone who thinks they "do fine" on 6 hours: the subjects' self-reported sleepiness flatlined after the first few days. Their brains kept getting worse. Their perception of how impaired they were stopped updating. The cognitive decline was invisible to the person experiencing it. The researchers found a hard threshold. Any wakefulness beyond 15.84 hours in a day produces cumulative neurobiological cost. That cost compounds every single day you exceed it and does not reset with a weekend of sleeping in. About 35% of American adults sleep less than 7 hours a night. 40% of those get 6 hours or less. In 1942 that number was 11%. We built an entire professional culture around a sleep schedule that this paper says is functionally equivalent to pulling consecutive all-nighters. "I'm fine on 6 hours" is the most common response to sleep research. The first thing chronic sleep debt destroys is your ability to notice chronic sleep debt.

The new Huberman Lab episode is out: Science-Based Meditation Tools to Improve Your Brain & Health | Dr. Richard Davidson 0:00 Richard "Richie" Davidson 3:33 States of Mind vs Traits 9:06 Wakeful Brain Activity vs Deep Sleep 11:55 Sponsors: David & Eight Sleep 14:31 Brain Activity Across Sleep, Wakefulness, Meditation & Insight 19:27 Mediation & Sleep Compensation?; Meditation Timing & Liminal States 23:05 Types of Mediation, Shifting from Thinking to Being 28:32 Self-Monitoring, Undistracted Non-Mediation, "Stickiness" 35:30 Tool: Beginning Daily Meditation, "Richie's 5 Meditation"; Health Benefits 39:39 Meditation Practice History, Kindness & Nurturing Goodness 45:07 Sponsor: AG1 46:31 Beginners, Expect Chaos in Mind, Exercise & Lactate Analogy 52:47 Tool: Beginning Mediation, Embrace Anxiety; Meta-Awareness, Flow 57:51 Creativity; Capturing Thoughts, Unconscious Mind 1:03:03 Meditation for Kids; Flourishing, Tool: Parent & Teacher Meditation 1:10:12 Sponsor: Joovv 1:11:34 Beyond Stimulus & Response 1:14:22 Meditation Need; Gaining Insight Into Mind, Transcendence 1:18:00 Contemplating Death, Long-Term Meditation 1:21:33 Richie's Meditation Practice; Tools: Pairing Meditation, Appreciation Practice 1:26:07 Consistency, Balancing Discipline vs Surrender 1:29:52 Social Media & Validating Existence, Digital Hygiene 1:37:31 Meditation & Impulsivity; Discipline & "No Go's", Phone 1:42:08 Physical Discomfort & Pain During Meditation; Retreat Practice 1:46:50 Phone Detox, Self-Control 1:52:07 Sponsor: Waking Up 1:53:29 Overcoming Resistance, Making Peace With Your Mind 1:58:37 Meditation & Connectivity; Consistency, Prayer; Sleepiness; Meta-Awareness 2:05:49 Tools: Pillars of Flourishing; Appreciation Practice, Loving-Kindness Practice 2:15:39 Awareness & Insight, Tools: Outside View; Task Connection 2:19:43 Cultivating Flourishing, Familiarity with Resistance 2:25:23 Psychedelics, Guides, Clinical vs Non-Clinical Use 2:32:15 Neuromodulation & Meditation, Sleep; Tool: Pre-Sleep Meditation 2:37:25 Open Monitoring Meditation & Creativity 2:41:12 Zero-Cost Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Sponsors, Protocols Book, Social Media, Neural Network Newsletter Includes paid partnerships.

hang my sketch in the louvre

So - finally wheelchaired out of hospital Only so many times you can watch Ace Ventura Nice to get back home and get on with life Thanks to everyone for their support - it’s been overwhelming & quite an eye opener Just 6 weeks of daily PICC line antibiotics then i’m good to go