This gene encodes transthyretin, one of the three prealbumins including alpha-1-antitrypsin, transthyretin and orosomucoid. Transthyretin is a carrier protein; it transports thyroid hormones in the plasma and cerebrospinal fluid, and also transports retinol (vitamin A) in the plasma.
6 Surprising Signs You Need More Sleep. You know the classic signs: You're dragging at work, you're yawning all day, you're sluggish and you swear you can actually hear your bed calling your name. You need to sleep. On the days when a fourth cup of coffee is masking the most obvious signs, you might think you've won the battle. But don't kid yourself.
Why You Need Sleep. The average kid has a busy day. There's school, taking care of your pets, running around with friends, going to sports practice or other activities, and doing your homework. By the end of the day, your body needs a break. Sleep allows your body to rest for the next day.