Can we actually live forever (or at least radically longer)?
Humans have always dreamed of eternal youth and life. Throughout history our desire for longer life spans manifested itself in religion and mythology. Today, our dreams of eternity are being explored scientifically. Where could sciences related to ending aging take our species in the future? Could the science of the 21st century lead to radical life extension?
When you crave certain foods your body may need something.
Food cravings can seem strong enough to pick you up and carry you straight to the refrigerator or convenience store independent of your will and better judgment. For many women, cravings are especially intense in the week or so before menstruation. But many men, older women, teens and children can have strong cravings too. Let’s look at what is behind this force. Naturopathic physician Tori Hudson, ND, describes the condition as a mild malnutrition, certainly not with severe overt consequences as say scurvy or rickets. Rather, a great many people on the Standard American Diet (SAD in more ways than one) suffer from a milder malnutrition from eating only depleted, processed foods and not enough whole, nutrient-rich foods.
As a result, we end up craving the vitamins, minerals and other nutrients that we lack. But while your body may know that you are missing for example potassium, your conscious mind is not aware of the flavor of potassium. Instead, because of familiarity, you can reminisce and feel hungry for the flavor of salty foods, which are high in another cation, sodium, and which have their appeal partly rooted in sodium and potassium. The salty foods that your conscious mind desires has its greatest ability to quench those cravings due to the salty foods’ high sodium content.
An explaiation of what happens to our body once we die.
Enjoy!
Welcome or not, dying is a natural part of the circle of life. Death initiates a complex process by which the human body gradually reverts back to dust, as it were. In the language of forensics, decomposition transforms our biological structures into simple organic and inorganic building blocks that plants and animals can use.
Four main factors affect the pace and completeness of decay. The most important is temperature: the rate of chemical reactions in a cadaver doubles with each 10 degree Celsius rise. Humidity or water from the environment buffers those reactions, slowing their effects. Extreme acidity or alkalinity hastens how quickly enzymes degrade biological molecules—although again, the presence of ample water can mediate the effects. Finally, anything that blocks exposure to oxygen, such as burial, submersion or high altitude, will slow decomposition. Depending on the interplay of these four factors, the body can turn into a skeleton as rapidly as two weeks or take more than two years.
Have you ever stopped to think why the sun looks yellow and the sky looks blue? Minute Physics explains in this video.
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It’s Ok To Be Smart explains the science of wind.
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Wind. Always there. Where does it come from?
Wind is everywhere. The air is constantly moving, sometimes gently, sometimes violently. Why? Pressure, temperature and rotation come together to make wind. Here’s how.
