He feels tired because of his _ _ _ _ _ _ _ headache that never goes away.
chronic (a)
The brain has a complex _ _ _ _ _ _ _ _ _ to protect us from danger.
mechanism (n)
During exercise, the body _ _ _ _ _ _ _ _ endorphins that improve your mood.
releases (v)
Regular physical activity _ _ _ _ _ _ _ _ _ _ _ the body and improves overall health.
strengthens (v)
The government took immediate action during the financial _ _ _ _ _ _.
crisis (n)
Without proper relaxation, accumulated stress may cause _ _ _ _ _ _ stiffness and discomfort.
muscle (n)
If you continue to stay up late, you will _ _ _ _ _ _ _ _ _ _ feel exhausted the next day.
inevitably (adv)
Only after years of research did scientists finally _ _ _ _ _ _ _ _ the underlying causes of chronic stress.
revealed (v)
High levels of stress are often _ _ _ _ _ _ _ _ _ _ various health problems.
associated with (verb phrase)
A balanced diet can significantly _ _ _ _ _ _ _ your overall well-being.
enhance (v)
