Vikram Chib News Today

Kalburge will investigate how humans form internal representations of uncertainty during decision-making

Take notes from elite tennis stars like Frances Tiafoe: There's a way to stress-proof yourself against performance anxiety.

Take notes from elite tennis stars like Frances Tiafoe: Theres a way to stress-proof yourself against performance anxiety.

Dopamine, a brain chemical long associated with pleasure, motivation and reward-seeking, also appears to play an important role in why exercise and other physical efforts feel "easy" to some people and exhausting to others, according to results of a study of people with Parkinson's disease led by Johns Hopkins Medicine researchers. Parkinson's disease is marked by a loss of dopamine-producing cells in the brain over time.

Its happened to presidential candidates, Wheel of Fortune contestants, and (lets be honest) you too — anyone can choke when stakes are high. Science explains why, and how to stop it.