Human performance, public health, biology, and the science of living well.
Seasickness begins when the brain receives incompatible information about motion. A passenger’s inner ears sense the rise, roll and acceleration of a boat, while the eyes may see a cabin that appears stationary. The mismatch can trigger dizziness, cold sweating, nausea and vomiting. NOAA’s seasickness overview explains why symptoms often feel worse below deck, where…
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Sixty breast cancer survivors completed a one week program that mixed daily sailing lessons with group psychological sessions and their quality of life scores improved over that short span. The clearest gains appeared in physical well-being, emotional well-being and breast cancer specific concerns, while anxiety scores stayed broadly where they started. Reported in European Journal…
Twenty-five adults who said they regularly felt stressed spent eight weeks moving through two different bath routines and one result stood out: they fell asleep faster during the phase that used neutral bicarbonate ionized water tablets. The same phase also improved questionnaire scores for sleep quality and reduced the time between waking and getting out…
A wrong response at depth can place a diver in immediate danger, especially when pressure, heavy breathing gas and a demanding task compete for attention. A chamber experiment has found that people breathing heliox made fewer mistakes under pressure than they did while breathing compressed air or trimix. The study in Biology examined healthy volunteers…
