Eat a hot meal before going out. Eating raises your body temperature and helps keep you warm.
Work posture and body mechanics
Organize your work so that you can change your position occasionally while maintaining a comfortable posture.
Position your work so you do not have to turn excessively to either side.
Keep your shoulders relaxed when your arms are hanging by your sides.
When using a keyboard, keep your forearms parallel to the floor or slightly lowered and keep your fingers lower than your wrists. Allow your arms and hands to move freely. Take frequent breaks to stretch your fingers, hands, wrist, shoulders, and neck. If you use a wrist pad during breaks from typing, it's best to rest your palm or the heel of your hand on the support, rather than your wrist.