Are training masks dangerous?

Related questions

1. What are the disadvantages of altitude training?
2. Why do athletes use hyperbaric chambers?
3. How does a hypoxic chamber work?
4. What are the four types of hypoxia?
5. What causes hyperoxia?
6. Why do we incubate plates?
7. Is it healthier to live at high altitude?
8. Do training masks help lose weight?
9. Which organism would require a co2 incubator?
10. What is a sign of oxygen toxicity?

Tags

1. #intensity
2. #causes
3. #drastically
4. #things
5. #carbon
6. #heart
7. #other
8. #dangerous
9. #strain
10. #among
11. #decreases
12. #lungs
13. #oxygen
14. #getting
15. #dioxide
16. #wearing
17. #going
18. #equivalent
19. #levels
20. #however
21. #mouth
22. #training
23. #strapping