Hidden deep in our guts, billion bacteria keep us healthy. Although invisible to the naked eye, they could revolutionise the future of medicine. This might happen, if they don't disappear because of our modern lifestyle.
2019
1987
2016
2015
2001
2000
2021
1998
2003
1984
1995
2017
2014
2007
2020
1941
1980
1990