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.
To determine how much sleep you need, it's important to assess not only where you fall on the sleep needs spectrum, but also to examine what lifestyle factors are affecting the quality and quantity of your sleep such as work schedules and stress. To get the sleep you need, you must look at the big picture. How Much Sleep Do We Really Need: Revisited . The National Sleep Foundation released the results of a world-class study that took more than two years of research to complete â an update to our most-cited guidelines on how much sleep you really need at each age. You can read the research paper published in Sleep Health .