The stress, the pressure, the long periods of focus, the anxiety, depressions can all *uck with your health. That's why a true traders learns to control their emotions and taking trades are like a walk in the park as your eye forms and your confidence in your trading system stabilises. Finally, trading is not everybody. In fact a very select group of people can actually make a living from trading.
Most jobs in our modern world have this kind of stress. Our bodies aren't adapted to live in these modern times, we need constant movement and sunlight for vitamin D. Sometimes I wish I could just leave itall behind and go live in nature.