If you have never heard of pulsed electromagnetic field (PEMF) therapy (or even if you have) than you may think the title of this article is almost absurd. And I don't blame you, but stay with me here. There is a compelling story that validates my bold claim.
On 12 April 1961, Yuri Gagarin was officially the first person to take a journey into the vast frontier of space circling the earth one full revolution. He is a cult hero in Russia and known at least as well as Neil Armstrong is in America.
What almost nobody knows is that even less than 2 hours in space had a extemely harmful effect on his body. He came back to earth with muscle weakness, bone loss, decreased metabolism and severe depression and died at a young age. So what was the missing in space that was so vital? Oxygen? Gravity?
Actually it was discovered that the human organism depends on pulsed magnetic fields to drive cellular metabolism and recharge the voltage of the 70 trillion cells in the body. So much so that even 2 hours without these healthy pulsed magnetic fields can cause irreversible damage to the body. Now we can certainly live more than 2 hours without water. This makes healthy pulsed magnetic fields the NEW second prioroty in human health after only oxygen.
Besides the static field, there are actually naturally occuring pulsed magnetic fields in nature that are the result of lightning strikes (millions per day) all around the planet. These strikes resonate in the earths ionsphere creating a pulsed magnetic frequency of around 7.83 hertz (called the Schumann Frequency) with higher harmonics of 14.2 and a few higher, but the predominate frequency is 7.83 hertz.
So the cosmonauts in space would neither get the static magnetic field or the pulsed magnetic field when removed out into space.