SOURCES
BACKGROUND
EXERCISE
- occup-med.biomedcentral.com
- runnersworld.com
- journals.lww.com
- sciencedirect.com
- helpguide.org
- dana.org
- ncbi.nlm.nih.gov
- hormone.org
- livestrong.com
SOCIAL INTERACTION
- healthybrains.org
- sciencedirect.com
- the-scientist.com
- ndnr.com
- sciencedaily.com
- socialconnectedness.org
- thelancet.com
- goodtherapy.org
- hopkinsmedicine.org
- psypost.org