It's AumSum Time Is running bad for knees? That Depends. On What? Whether I am being made to run. Oh AumSum. Some people believe that running is bad for knees because it causes arthritis. However, a research states the opposite. Really? Yes. Volunteers were made to run for 30 minutes on a treadmill. Post running, certain substances associated with arthritis. Were found less in the synovial fluid present in the knee. And more in the blood. Thus, running might have squeezed these substances out of the knees. Reducing the risk of arthritis. But yes, certain factors could cause trouble to the knees. Running on concrete surfaces can damage the cartilage in knee joints. The softer the surface, the more joint friendly
it is. Weight is another factor. Heavier the person, higher the risk of knee
injuries. The right shoe choice is also important. And lastly, cartilage loss could happen with
age. Increasing the risk of knee injury. Can we travel faster than the speed of light? Yes. The Star Trek guys can travel faster than
light. Our universe is very big. It consists of numerous galaxies, stars, planets,
etc. However, until now, we are able to examine
only a few of them. So, in order to cross vast distances and explore
distant places. We need to travel very fast. Now, it is observed that nothing can travel
faster than the speed of light. Which is about 186,282 miles per second. This means light from earth will take only
1.3 seconds to reach the moon. Let's compare this to the Apollo 11 spacecraft. That took 75 hours and 56 minutes to just
enter the orbit of the moon. So, imagine if we could travel faster than
light. Then space travel would be so easy. We could time travel and even see our future. However, traveling faster than light is impossible. Do you know why? According to Einstein's theory of relativity. To move an object, we require energy. Now, to make this moving object move faster
or speed up. We require even more energy. So, what do you think? How much energy will be required to make an
object move at the speed of light? If we again refer to the Einstein's theory
of relativity. We can conclude that. It will require an infinite amount of energy
to make an object move at the speed of light. But, looking at the current situation, neither
do we have the necessary resources. Nor do we have the technology to produce an
infinite amount of energy. Hence, we cannot travel at the speed of light
or faster. Moreover, just like a sonic boom is produced
by an object traveling faster than sound. Similarly, a huge amount of radiation will
be produced by an object traveling faster than light. This radiation can lead to serious consequences. Hence, it is impossible to travel faster than
the speed of light. Do animals live longer than humans? No. Only I have the potion of eternal life. Alright. Alright. Now listen. When we are young, our cells divide rapidly
to replace the old dying cells. They even fight against diseases and help
us remain healthy. However, as we begin to age. The cells cannot efficiently divide and fight
against diseases. Thus, eventually our lifespan begins to come
to an end. Now, it is believed that animals live longer
because of the environments they live in. For example, animals that live in cold oceans
have slow metabolic rates. According to a study, slow metabolic rate
slows down the aging process. Thus making those animals live longer. For example. Greenland sharks which are found in cold Arctic
oceans can live up to 400 years. In addition to this. It is observed that the size of an animal
also plays a role in determining its lifespan. Smaller the animal, more are the number of
predators. Hence, the risk of dying early is high. Thus, animals like mice have a lifespan of
about 1 to 2 years. As compared to elephants whose lifespan is
about 60 years. However, animals like bats and some other
birds are an exception to this size rule. Even though they are small, they don't die
early. And live a longer life because they have evolved
strong defense mechanisms. Moreover, it is also observed that. Some species which breathe fewer times per
minute seem to live longer. For example. A tortoise which takes about 4 to 5 breaths
per minute lives for more than 100 years. While a dog which takes about 24 breaths per
minute lives for approximately 10 to 20 years. Also, according to a study, very small species
of animals like flies and worms. Lack the cells which divide and replace the
old ones. Hence, they don't live a long life. Is it bad to hold our urine? Dude. Right now, I'm not in a state to answer you. Ok. I will explain. Our body has various ways to get rid of unwanted
waste materials. One of these ways is through urine. Urine is a liquid waste consisting of unwanted
materials like. Water, salts, urea, uric acid, etc. The urinary system consists of. Two kidneys, two ureters, a urinary bladder
and a urethra. The two kidneys filter blood and produce urine. Which flows through the ureters and starts
getting collected in the urinary bladder. When our urinary bladder starts getting full
and it begins to stretch or expand. The nerves of the bladder inform the brain
to produce an urge to urinate. Now, when we want to urinate. The bladder contracts and the urine flows
out of the body through the urethra. Once in a while, it's okay to hold our urine. But stress and pressures of modern life. Make us hold our urine more often and for
longer periods. Which can have negative effects on our health. For example, a wet and warm bladder of urine. Is the perfect breeding ground for harmful
bacteria. Hence, if we don't empty the bladder regularly. Then the bacteria are more likely to grow
and multiply. Causing urinary tract infection or UTI. Holding the urine can also cause the bladder
to remain expanded. Or stretched for too long. This may make it difficult for the bladder
to contract normally while urinating. As a result. The bladder will not be emptied completely. Which can lead to discomfort, pain and other
serious problems. Sometimes, the excess urine in bladder can
even flow back to the kidneys. Causing kidney damage or kidney infection. In very rare cases. The bladder may even burst, risking the life
of the individual.
