Being well-rested can drastically improve your appearance. Most adults need about eight hours of sleep, but teenagers can require up to ten. Staying fully hydrated will make you look better by clearing up your skin, improving the health of your hair and nails, and keeping your body healthy. If you mostly drink soda, coffee, or juice, try replacing some of them with water until you are drinking at least 8 cups (1,900 ml)  daily. Alcohol, caffeine, cigarettes, and drugs are especially bad for your appearance and health. Be sure you shower every day and clean yourself thoroughly with soap and water. How often you wash your hair will depend on your hair type, but you should at least clean your body daily. You should use a moisturizer on your face and body every day, even if you have oily skin--moisturizer will stop your skin from producing its own oils. You can use any kind, but check the label first to see if it’s the best kind for your skin type. You don’t have to put on a new shade of nail polish every day, but your nails should be clean and manicured all the time. Clip and file your nails so they are even and clean under them daily. If you wear polish, check for chips every day and fix them if you have polish on hand. Biting your nails is the best way to break them and make them weaker. Refrain for biting them at all costs. Dip your hands in lemon or rub lemon on your nails and fingertips so if you feel the urge to bite them you will taste lemons. Keep your hair brushed and styled every single day. Make sure your hair doesn't have any knots or tangles, and that it is neat and clean. If your hair gets flat and oily by the end of the day, try to wash it every day; otherwise, every other day is fine. Smelling nice is an essential part of being pretty! Be sure you use deodorant every single day. You can also wear perfume--many people have a signature scent they wear every day. If you don’t wear much perfume, try a light floral or fruit scent first. But always be careful to not wear too much.   Don’t use deodorant...

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Write a summary of the previous text in Vietnamese:
Ngủ đủ giấc. Uống ít nhất 8 cốc nước (2 lít) nước mỗi ngày. Tắm mỗi ngày. Sử dụng kem dưỡng ẩm. Giữ sạch móng và cắt tỉa gọn gàng. Giữ mái tóc sạch sẽ và tạo kiểu tóc hàng ngày. Dùng sản phẩm khử mùi và xức nước hoa. Đánh răng và dùng chỉ nha khoa mỗi ngày hai lần. Cải thiện tư thế. Trang điểm nhẹ nhàng. Mặc quần áo sạch sẽ và phẳng phiu. Mặc quần áo vừa vặn. Cân nhắc thay đổi diện mạo.