The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils. Hope this helps.
Date: 6/7/21
Warm up: 5 minutes
Cool down: 5 minutes
Type of activity: curl ups
Description of activity and time: 5 sets of 15 with 5 pounds taking a 20 second break in between
Intensity level: moderate
Total time: 25 minutes
I thank it's drying and preserving and refrigerating hope this help
JUST TELL THEM GO TO THERAPY OR MAYBE GIVE THEM SOME GOOD ADVICE TO MAKE THEM FEEL BETTER.