B. The heart rate he should maintain during exercise to obtain fitness and health benefits
Answer:
Stress
Explanation:
Stress is a response to an emotional and/or physical tension, which manifests as a feeling of frustration, nervousness or anger. This feeling is "telling to the body" that any change or adjustment is needed. The body may respond to stressful situations through physiological (e.g., increased heart/breathing rate, hormone release, etc) and psychological (e.g., anxiety, depression, etc) stress responses. People feel stress when they have the sensation to be overwhelmed or are unable to face a task/situation.
The DRI (Dietary Reference Intake) is 0.8 grams of protein per kilogram of body weight, or 0.36 grams per pound. This amounts to: 56 grams per day for the average sedentary man
Can slow reaction rate, increase temper and can make it harder to concentrate.