Can anyone suggest some good stress release methods?

Long story short. My husband has been getting one health problem after another. People at work (massive pus filled control freaks who don’t know his job but swear that he is a magic genie) are getting to him and his stress is building up and its causing him to get health problems.
Before anyone suggests it. He is currently applying for other jobs but that may take a while. In the mean time I need a quick solution to help him relax and not be so stressed.
Appreciate your help.