Space travel affects astronauts health at molecular level

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/AAr19eu.img?h=100&w=100&m=6&q=60&o=f&l=fSpending time in the zero-gravity conditions of space can cause astronauts'' bodies to undergo significant changes at the molecular level, putting them at risk of various heath issues, a study has warned.

أكثر... (http://www.msn.com/en-in/news/techandscience/space-travel-affects-astronauts-health-at-molecular-level/ar-AAr1iXG?srcref=rss)