Solid health means that your body is functioning well and keeping you healthy and feeling good. To stay in solid health, it is important to get enough sleep, eat a balanced diet, exercise regularly, and take care of your mental health. Eating enough fruits and vegetables gives your body nutrients it needs to stay strong and fight off illnesses. Exercising helps your body stay strong and keep muscles and bones healthy. And taking care of your mental health is important since it helps you stay in a positive frame of mind and helps you cope with stress. So to have solid health, you need to take good care of your body and mind.