The department of
Evidence
Evidence-based sleep science, caffeine research, and circadian studies explain what actually works beyond theory and anecdote.
Pieces
3
Evidence
July 2026 · 5 min
Three IQ Points: What the Evidence on Breastfeeding Benefits and Brain Development Actually Shows
The number is 3.44. That is the IQ advantage usually attributed to breastfed children, and it is the single figure doing most of the work whenever breastfeeding benefits and brain development come up…
By Elliot Carver · Read →
Sleep
July 2026 · 10 min
One Espresso, One Night, One Number: How to Read Health Trends Without a Lab
On a Tuesday in February I drank a double espresso at 4:12 p.m. — call it 150 milligrams of caffeine — specifically because I wanted to catch my own sleep in the act of falling apart.
By Megan Caldwell · Read →
Sleep Aids
June 2026 · 5 min
Natural Sleep Aids and the 7-Minute Question: What Melatonin Actually Does
Somewhere in the last decade you probably absorbed a number, even if you can't place where: melatonin helps you fall asleep about seven minutes faster. Not seven hours. Seven minutes.
By Rachel Stanton · Read →
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