How does cholesterol affect learning and memory pltw?

Cholesterol plays an important role in the body's nervous system and is vital to normal brain function, including signaling, synaptic plasticity and learning and memory . It is found in the cells in the body.
Cholesterol is abundant in the tissue of the brain and nervous system. Myelin is the cholesterol which covers nerve axons to help conduct the electrical impulses that make movement, sensation, thinking, learning, and remembering possible,
Sleeping enables our brain to make more cholesterol, and that's why sleeping is good for our memory and learning capabilities.

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.