Bodily stretching is vital, and a good clean place is needed - construct stages on which to workout and to relax. If an hour can be spared to stretch one's backbone it is an hour well spent. If more time probably mo bettah.
Mental exercise is even more important: not doing figures and cyphers but reaching out to new patterns and approaches. That is not easy - and it requires putting oneself into unfamiliar and stressful situations. This is not a call to enter dangerous situations, seek simply to gain exposure to those patterns or surroundings unfamiliar.
And what are the things that cause stress:
- the unknown itself
- physical injury or bodily harm
- social censure