WHY DO WE YAWN?????

Why do we yawn? THE TRUTH IS that we don’t completely understand why people, or animals for that matter, yawn.
It’s widely assumed that yawning occurs because we are tired or bored or because we see someone else doing it, but there isn’t any hard evidence to support these beliefs.
Scientists do not purport to know all of the biological mechanisms of the yawn, but tend to agree that a yawn is an involuntary respiratory reflex, which regulates the carbon dioxide and oxygen levels in the blood.
Technically, a yawn is the reflex opening of the mouth followed by the deep inhalation and slow exhalation of oxygen.
The very act of yawning is but one of a number of involuntary reflexes controlled by the spinal and nerve centers.
Scientists speculate that the onset of a yawn is triggered either by fatigue, or by sheer boredom as, at those times, breathing is shallow, and little oxygen is carried to the lungs by the oxygen-toting cardiovascular system.
When one yawns, his or her alertness is heightened, as the sudden intake of oxygen increases the heart rate, rids the lungs and the bloodstream of the carbon dioxide buildup, and forces oxygen through blood vessels in the brain, while restoring normal breathing and ventilating the lungs.
This quite plausible theory of yawning falls short of explaining many aspects of yawning. Scientists explain away the "contagious" nature of yawning, that is when one person's yawn triggers another nearby to yawn, as due to the power of suggestion, but are at a loss when attempting to explain why yawning occurs excessively in patients with lower brainstem damage or with multiple sclerosis.
Other unlocked mysteries include why fetuses in the womb yawn, when it is a well-known fact that they do not intake oxygen into their lungs until after live birth, or why individuals with high concentrations of oxygen in their blood streams yawn.
Until these questions are answered, do not assume that a person who yawns in your presence is bored with what you are saying, or suffers from exhaustion. Simply be pleased that he or she is not bored to death.

Enjoy the Falling Rain

Enjoy the Falling Rain

It's raining outside!! Wat to do now? sometimes really tiring but, No! Learn to love the falling rain, which waters our world and should keep our spirits up.



Open the window in rainy weather. Lie down and let the sound of the rain soothe you. If it is bedtime, drift asleep to the sound of the rain.

Keep warm in colder weather. Don't open the window unless it is bearable; instead, cuddle up under your favorite quilt or blankets and listen to the sound of the rain on the roof. Yes, turn the TV off!

Focus on your senses. Watch the raindrops as they create puddles, listen to the different tones, from the white noise of distant rain to the more melodic large drops that hit puddles when running off the roof. Especially breathe deep, taking in the freshness of the air that only a fresh rainfall provides.

Take children out in the rain in their rubber boots and raincoats. Let them splash around in the puddles and rain (Bring your own rubber boots and join in if you want to feel like a kid again). They can take their rubber ducks and bath toys with them, or they can try and spot where the animals have hidden from the rain (birds, squirrels, possums etc., whatever your part of the world has). If you have an ant hill nearby, let them investigate what the ants are doing. Ask them if the ants come into your house earlier to warn you the rain was coming?

Take out some time from work or play to watch the rain falling through your windows. Relax and breathe deeply. Ask others to appreciate the rain with you.

Cook your favorite meal that you associate with rainy days. It'll bring back memories and cheer you up.

Do all those things you said you'd save until a rainy day. Get out the old puzzles and games; finish that long-forgotten sewing or woodwork project; read that novel; dance with your loved one on the living room floor.

Go on an indoor outing like the cinema or a restaurant. Apart from needing to take an umbrella or raincoat, once you're indoors again, you'll forget about the weather and you won't regret wasting sunshine.

Drink hot tea and enjoy the sip with your near and dear ones.