Low partial pressure of oxygen in tissues is a condition called
If you have good cardio respiratory endurance, then you'll be able to do rigorous physical activity for longer amounts of time, because like other muscles in your body, the more you stretch them the stronger they get and the longer they would last.
Hope that helps and makes sense :)
Safety tips- check weather before going outside, dress and pack accordingly, put on sunscreen to protect the skin.
Fire safety prevention guidelines- install smoke alarms, test alarms every month, talk with family about fire escape plans and practice them, and if it's in your house Get Out, Stay Out , and Call For Help
Yes as long as the wax is falling in to something and it's out of reach, there is no toxins in wax.