Define decline to show its scientific meaning

A decline is a situation in which a security's price decreases in value over a given trading day and subsequently closes at a lower value than its opening price!!

If you stop working out, your health may decline If you want it to improve you should start climbing inclines instead of coasting down declines The verb decline means refuse to accept but the noun decline means a downward slope the opposite of an incline or a decrease in quality

hoped this helped

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.