The blood of the astronauts found signs of DNA mutation.

American scientists from the Icahn School of Medicine at Mount Sinai analyzed the blood of 14 NASA astronauts. The samples showed signs of somatic DNA mutations. They can increase your risk of developing cancer and heart disease. Most of all mutations occurred in the TP53 gene - it produces a protein that suppresses the tumor. Also in DNMT3A - this gene is often mutated in acute myeloid leukemia. The results of the study do not mean that astronauts will definitely get sick. The data must be taken into account when planning long-term expeditions to deep space.