@edison_udom makes sense you feel tired as going to sleep later than usual will result in missed deep sleep. good reminder to be on time to get full deep sleep cycle.

@Kwebbelkop great job

@BillyM2k Does your tracker break down REM and Deep amounts?

@farbood Solid REM and Deep. First REM cycle ~90 min after bed which is great. Seems only one brief wake event. Great night.

Astronauts in microgravity can lose around 1–1.5% of their bone density per month. 10x faster bone loss than on Earth.

how did you sleep last night?

If you recently got less than four hours of sleep, I have some news for you.

Protocol for optimal sperm health:

+ Sleep: 8+ hours nightly
+ Reduce inflammation: omega-3s, NAC, exercise
+ Avoid testicular heat: no saunas (or sauna with an testicular ice pack), tight underwear, or laptops
+ Eliminate toxins: alcohol, cigarettes, plastics
+ Train hard:…

Semen quality isn’t just about reproduction. It’s one of the clearest biomarkers of systemic aging: tightly linked to hormone health, inflammation, mitochondrial function, and metabolic fitness.

Across five lab tests in 3 months, my total motile sperm count (TMC) averaged 165…

While global sperm health is plummeting, my sperm count is over 4× the average. At age 47.

Global data from 1973 to 2018:
+ sperm concentration declined by 51%
+ total sperm count declined 55%

My sperm concentration (143 million) and count (380 million) both exceed 1973 levels…