The primary function is that pineal gland secretes melatonin. This hormone is the primary one that controls your sleepiness and wakefulness. Natural light tends to turn this gland on. When the pineal gland is activated, your brain moves from sleeping to a state of wakefulness.
Frittata is an egg-based Italian dish similar to an omelette or crustless quiche, enriched with additional ingredients such as meats, cheeses, vegetables or pasta. The word frittata is Italian and roughly translates to fried.
In the last fifty years, frittata has become a term for a distinct variation that Delia Smith describes as Italy's version of an open-face omelette. 1  When used in this sense, there are four key differences from a conventional omelette: