As a pianist and vocalist, Donald has performed and recorded with many nationally and internationally know artists including: Art Blakey, Rahaan Roland Kirk, Benny Carter, Archie Shepp, Dizzy Gillespie, Jackie McLean, Leon Thomas, Pharoah Sanders, Oliver Lake, Yon and Chico Freeman and Thad Jones-Mel Lewis Big Band.
Sweat is a feedback mechanism used by your body as a way to regulate temperature. Your body may produce more sweat while exercising due to an increase in core temperature. While your level of hydration does cause small fluctuations in body weight, sweating during exercise does not mean that you are losing weight. A part of your brain known as the hypothalamus is responsible for monitoring changes in body temperature.
A human weighing 70 kg can sweat at a rate of 1.5 to 2.0 l/h indefinitely, and it is possible for a worker to lose several litres or up to 10% of body weight during a day in an extremely hot environment. Such loss would be incapacitating unless at least part of the water were replaced during the work shift.