The answer is Muscle endurance
The thyroid hormones—specific thyroxine (T4) and triiodothyronine (T3) hormones—from the thyroid gland.
3 quarters (75 cents) 1 dime (10 cents) 2 pennies (2 cents) 75+10+2=87 | 6 coins
Or, with half dollar coins:
1 half dollar coin (50 cents) 1 quarter (25 cents) 1 dime (10 cents) 2 pennies (2 cents) 50+25+10+2=87 | 5 coins
