FIND WHAT YOU NEED
NAD+ (nicotinamide adenine dinucleotide) and sleep have a genuinely compelling biological connection: NAD+ is a cofactor directly involved in the molecular machinery of your circadian clock, and NAD+ levels decline substantially with age, by an estimated 40 to 50 percent between your 20s and 80s, alongside the well-documented decline in sleep quality that also happens
NAD+ and Sleep: The Mouse Study Behind the Hype Read More »
Red light therapy for sleep marketing typically bundles two genuinely different claims together, and separating them matters. The first claim, that red light doesn’t suppress melatonin the way blue light does, is well-established photobiology: the eye’s melanopsin-containing cells that regulate your circadian clock are far more sensitive to blue wavelengths than red ones. The second,
Red Light Therapy for Sleep: Two Claims Worth Separating Read More »
Binaural beats for sleep are often promoted with a specific, impressive-sounding statistic, a 2019 meta-analysis finding a “medium, significant” effect size across 22 studies, but it’s worth knowing that meta-analysis measured effects on cognition, anxiety, and pain, not sleep specifically. The phenomenon itself is real: when you hear two slightly different tones in each ear,
Binaural Beats for Sleep: What the Research Actually Covers Read More »
Nicotine is a stimulant, and decades of research consistently show it disrupts sleep: increased time to fall asleep, more fragmented sleep, reduced deep (slow-wave) sleep, lower overall sleep efficiency, and in most studies, suppressed REM sleep. Vaping specifically carries the same risk, a 2025 meta-analysis of 14 studies found e-cigarette users had 38 percent higher
Nicotine and Sleep: Even Quitting Aids May Not Help Read More »
THC and sleep have a more genuinely contested relationship than “cannabis suppresses REM sleep” suggests, and that’s worth understanding before treating either claim as settled. Classic cannabis research consistently found THC heavily suppresses REM sleep. But a 2025 systematic review found that modern studies using lower, therapeutic doses often don’t replicate this effect, and one
THC and Sleep: The REM Question Isn’t Settled Read More »
Sleep changes after 50 are real and well-documented: less deep (slow-wave) sleep, less REM sleep, more nighttime awakenings, and a tendency to fall asleep and wake up earlier than you used to, a shift called a circadian phase advance. What’s less well known is that a landmark meta-analysis of 65 studies and nearly 2,400
Sleep Changes After 50: What’s Normal Aging vs. a Problem Read More »
Napping benefits are real, but they depend heavily on length and timing, more than most “just take a 20-minute power nap” advice acknowledges. A controlled comparison study found that in sleep-restricted adults, a 10-minute nap produced better immediate improvements in alertness and performance than a 20-minute nap, while a 30-minute nap caused a period of
Napping: When It Helps and When It Actually Hurts Read More »
“Ozempic and sleep apnea” is a common search, but the strongest, FDA-approved evidence here actually belongs to a different, related drug. Tirzepatide (sold as Zepbound for weight management and Mounjaro for diabetes) became the first and only FDA-approved medication specifically for moderate-to-severe obstructive sleep apnea (OSA) in adults with obesity, based on results from the
Ozempic and Sleep Apnea: What the Real Trial Data Shows Read More »
Ambien (zolpidem) and the other “Z-drugs,” Lunesta (eszopiclone) and Sonata (zaleplon), are among the most commonly prescribed insomnia medications, but they carry the FDA’s strongest possible warning label. In 2019, the FDA added a Boxed Warning to all three drugs after identifying 66 cases over 26 years of serious injury or death linked to “complex
Ambien Side Effects: What the FDA Warnings Actually Say Read More »
Sleep restriction therapy (SRT) sounds backwards: it treats insomnia by temporarily reducing the amount of time you spend in bed, not increasing it. The logic is that lying in bed for 8 or 9 hours while only sleeping for 6 trains your brain to associate bed with wakefulness and frustration, and dilutes your natural sleep
Sleep Restriction Therapy: The Counterintuitive Fix for Insomnia Read More »
