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Studies have been done which showed that when bones are relieved of the burden of bearing weight, bone precursor cells fail to respond to insulin-like growth factor one or IGF-I, a biochemical regulator that plays a key role in the proliferation of most cell types.
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Why should astronauts exercise regularly while on a space mission?
While in weightlessness, your bone density and muscle mass decrease as you don't use them. So, by doing several hours of exercise a day, you are using the muscles and bones, therefore, the bone density and muscle mass do not decrease as much as they would if they didn't exercise.
What cellular activity causes increase in bone mass?
osteoblasts secrete matrix; bone deposition
When does bone mass decrease?
Bone mass typically starts to decrease around the age of 30. Factors such as hormonal changes, lack of physical activity, and inadequate nutritional intake can accelerate this loss, leading to conditions like osteoporosis. Regular weight-bearing exercise, a diet high in calcium and vitamin D, and avoiding smoking and excessive alcohol consumption can help slow down the decrease in bone mass.
What is the opposite of Dark Energy?
There is no opposite of dark energy in the sense that there exists something that is the exact opposite of dark energy. Dark energy speeds the rate of expansion of space, even empty space, and gravity, mass, or matter causes the opposite in that it causes a decrease in the rate of expansion of space in areas that have matter.
Will the mass of melted ice decrease?
No, but it will take up slightly less space after melting.
How and why will the mass of the whole space vehicle change when the boosters are separated?
When the boosters are separated from the space vehicle, the mass of the vehicle will decrease because it is losing the mass of the boosters. This reduction in mass allows the remaining vehicle to accelerate more efficiently and achieve its intended trajectory in space.
When an astronaut is propelled into space does his mass increase or decrease?
The astronaut's mass remains the same in space as it does on Earth. However, their weight (the force of gravity acting on them) will decrease in space compared to on Earth due to the absence of gravity.
Do you increase or decrease in mass?
I do not have physical form or mass, so I do not increase or decrease in mass.
How the mass appears to changes during transit?
settling that eliminates space causes this
Living in space how it effects human body?
Loss of muscle tone and bone mass, among others.
Why when the mass increases velocity decrease?
When mass increases, more force is needed to accelerate the object to the same speed due to its increased inertia. This increase in force required causes the velocity to decrease because there is a limit to how much force can be applied. Essentially, the greater mass resists changes in motion, resulting in a decrease in velocity.
What happens to muscle and bone tissue when they are not used?
Muscle atrophy and bone loss can occur when muscle and bone tissue are not used. Muscle atrophy is the loss of muscle mass and strength, while bone density can decrease leading to osteoporosis. Regular physical activity is important to maintain muscle and bone health.
