The thing about physical health is that it can take an awfully long time before illness manifests or shows up on the doctors blood tests. Many people wander around in a state of sub-clinical health completely unaware of anything other than that they don't feel 'good'. This underlying unwellness will affect state of mind before anything else. If your body is suffering, how can your mind be happy?
There are 3 very simple things everyone should implement in their life before they lift the phone to call for psychological help.
3. EXERCISE - There is a huge amount of research and publicity for the benefits of exercise. Its the number one antidote for mild anxiety, depression and any other health condition you can think of. But how many people walk through my door that are not engaged in regular exercise! Exercise is a free anti-anxiety and anti-depressant. It helps with self regulation so your fuse is longer and your ability to return to baseline mood after an upset is faster. Also is aids in the production of BDNF - Brain derived neurotrophic factor, which is essential for neuro-plasticity the ability to learn and form new neuronal connections. I have seen many peoples mood problems, particularly anxiety, reduce significantly after they start exercising.