middle-aged

Hainan Island separated from Vietnam millions of years ago
Most plants and animals on China's southern Hainan island originate from Vietnam, which is hundreds of kilometers away.
Low-carb diets can reduce the lifespan of middle-aged people
Middle-aged people who take low-carb diets, which are low in starch and high in protein from meat, are at risk of losing their lifespan.
Frequent lack of sleep increases the risk of stroke
According to a study presented June 11 at the SLEEP 2012 conference, regular sleep less than 6 hours per night significantly increases the risk of stroke symptoms in middle-aged or