Effects of Space Travel on Astronauts

The video discusses the effects of space travel on the human body, focusing on six key areas: accelerated aging, muscle and bone loss, height changes, radiation exposure, cardiovascular aging, and balance and vision changes. Astronauts experience accelerated aging due to microgravity and radiation, leading to bone and muscle loss, DNA damage, and increased cancer risk. They grow taller in space but face back pain upon return. Radiation exposure is a significant concern, with NASA implementing shielding to mitigate cancer risks. Cardiovascular health is affected, with arteries losing elasticity. Vision and balance are also impacted, with some astronauts needing glasses in space.

What was the original duration planned for the mission of NASA astronauts Sunny Williams and Butch Wilmore?

• 6 months

• 1 year

• 9 months

• 8 days

How does space travel accelerate aging at a cellular level?

• By increasing oxygen levels

• Through microgravity and radiation exposure

• By reducing physical activity

• Through increased gravity

What is the primary reason for muscle atrophy in space?

• Increased radiation exposure

• Poor nutrition

• Microgravity reducing the need for muscle work

• Lack of exercise equipment

How much bone mass do astronauts lose for every 6 months spent in space?

• Equivalent to 5 years on Earth

• Equivalent to 10 years on Earth

• Equivalent to 20 years on Earth

• Equivalent to 30 years on Earth

What happens to astronauts' height in space?

• Their height remains the same

• They grow taller

• They grow shorter

• They experience no change

What is the purpose of the shielding developed by NASA on the ISS?

• To improve sleep quality

• To enhance communication with Earth

• To limit the lifetime increase in cancer risk

• To increase oxygen levels

How does space travel affect astronauts' arteries?

• They remain unchanged

• They become thicker

• They lose elasticity

• They become more flexible

What condition affects astronauts' vision in space?

• Space flight Associated neuro ocular syndrome

• Space-induced myopia

• Microgravity glaucoma

• Zero-gravity cataracts

What happens to the inner ear in space?

• It functions normally

• It becomes more sensitive

• It malfunctions, affecting balance

• It improves balance

Why might astronauts need glasses in space?

• To protect against radiation

• To enhance vision clarity

• Because of eyeball flattening

• Due to increased light exposure