Blog
Kidney stones in hot weather: what research says about heat, dehydration and drinking water
Kidney stones in hot weather: studies tie hot, humid days to more doctor visits for stones. What is known about dehydration and drinking water, and what is not.
Best temperature for sleep: what research says about bedroom heat, cold and AC at night
Best temperature for sleep: the studies give no single bedroom number. What they say about bedding, humid heat, sleeping with AC on all night and cold rooms in winter.
Pregnancy, heat, and barometric pressure: what research does and doesn't show
What large studies say about heat during pregnancy, why the research on barometric pressure doesn't hold up, and which symptoms mean it's time to call a doctor, not watch the weather.
How much water do you actually need? Weather, activity, and the hydration myths
The "8 glasses a day" myth, what EFSA's actual water guidance says, and why the consensus on fluid intake during exercise points at thirst rather than at drinking more.
Heat, humidity, and fatigue: how weather drains your energy
Why humid heat feels more draining than dry heat: the thermoregulation mechanism behind it, what research shows about performance and sleep, and why the threshold is personal.