D. Because when you bite your nails your not in that type of mental state
Answer:
Homeostasis.
Explanation:
Homeostasis is the ability (of an organism) to keep constant its internal environment, temperature, pH, or other internal factors.
I hope this helps!
-Bella
<em>BrainlyBluebell</em>
1. adding just 5 minutes more of walking after a cardiovascular routine
F correct intensity level
2. re-adjusting your exercise routine after an injury
E accept set-backs
3. beginning a new cardiovascular program by walking and not running
B progress incrementally
4. understanding that you may lose muscle strength during a vacation
D feedback
5. making your routine for the month personally relate to you
C goal making
6. making a long-term commitment to exercise
A lifelong process
This is true because when your are stressed and you eat bad it can add even more stress and maybe even a outbreak
