Burning Astronaut Pee - Smarter Every Day 149 | Summary and Q&A

1.5M views
January 1, 2016
by
SmarterEveryDay
YouTube video player
Burning Astronaut Pee - Smarter Every Day 149

TL;DR

Astronauts use a device called the Advanced Resistive Exercise Device (ARED) to simulate weightlifting in space, which helps prevent muscle loss and maintain bone density.

Install to Summarize YouTube Videos and Get Transcripts

Questions & Answers

Q: How does the ARED machine simulate weightlifting in a weightless environment?

The ARED machine uses vacuum and lever systems to provide constant force similar to weightlifting on Earth. By creating a vacuum and using pistons and rods, it allows astronauts to lift weights in space.

Q: Why is bone density important in space?

Without proper bone density maintenance, astronauts can lose 2 to 2.5% of their bone density per month, which can be detrimental to their health. Loading the bone stimulates bone growth and helps prevent bone loss.

Q: What happens to the minerals from bone density that astronauts lose in space?

The majority of the minerals lost through bone density loss in space are excreted through urine. Scientists at NASA's Johnson Space Center study urine samples to understand the impact of space on bone health.

Q: How does the ARED machine benefit astronauts' health?

The ARED machine helps prevent muscle and bone loss in astronauts by simulating weightlifting exercises. This helps maintain muscle mass and bone density, reducing the risk of disease-like symptoms and bone fractures.

Summary & Key Takeaways

  • Astronauts face muscle and bone loss in space due to the lack of gravity, which can lead to disease-like symptoms.

  • The ARED is a machine that allows astronauts to lift weights in a weightless environment using vacuum and lever systems.

  • Bone density is crucial in space, as astronauts can lose up to 2.5% of their bone density per month, but ARED helps maintain proper skeletal loading.

Share This Summary 📚

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on:

Explore More Summaries from SmarterEveryDay 📚

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on: