Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies – or ‘replicates’ – its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.

Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells. Meiosis begins following one round of DNA replication in cells in the male or female sex organs.

During sleep, your skin’s blood flow increases, and the organ rebuilds its collagen and repairs damage from UV exposure, reducing wrinkles and age spots.

The key is to get enough shut-eye — 7 to 9 quality hours each night. If you’re getting fewer than 6 hours, it’s likely affecting your appearance, says Michael Breus, PhD, a board-certified sleep specialist.

Some people develop a habit of breathing through their mouth instead of their nose even after the nasal obstruction clears. For some people with sleep apnea, it may become a habit to sleep with their mouth open to accommodate their need for oxygen.

Sleeping with your mouth open is normal in most cases, it’s just your body’s natural way to get more air for you to breathe during your sleep.

Most healthy older adults age 65 or older need 7-8 hours of sleep each night to feel rested and alert. But as you age, your sleep patterns may change. These changes can cause insomnia, or trouble sleeping.

Mouth breathing may result from upper airway obstruction or from habit wherein air flows through the mouth. According to the literature, this form of breathing may change the growth pattern of the face and lead to morphological and functional alterations in the whole organism.

How can it be corrected? Eliminating contributing factors such as adenoids, nasal polyps, and allergies are key. Orthodontics may need to be addressed as well. Once these issues are addressed mouth Breathing can be reversed through a series of targeted exercises involving the tongue, and lips.

How to Stop Mouth Breathing

1. Regular Practice. Remember; breathe in and out of the mouth.
2. Clean the Nose. Even if it may seem clear, many people in their mouth breathe because their nose is blocked.
3. Stress Reduction. You hurry to breathe when you get stressed.
4. Get Big Pillows.
5. Exercise.
6. Surgery.
7. Visit a Therapist.

It’s not uncommon, though, to slip into a mouth-breathing habit. Test yourself by inhaling through your nostrils. If you can’t, you may have some kind of obstruction, and should go see an ear, nose and throat specialist.