Yoshinori Ohsumi, a professor of Tokyo Institute of Technology, smiles during a news conference after he won the Nobel medicine prize at Tokyo Institute of Technology in Tokyo

Yoshinori Ohsumi, a professor of Tokyo Institute of Technology, smiles during a news conference after he won the Nobel medicine prize at Tokyo Institute of Technology in Tokyo

Yoshinori Ohsumi, a professor of Tokyo Institute of Technology, smiles during a news conference after he won the Nobel medicine prize at Tokyo Institute of Technology in Tokyo, Japan, October 3, 2016. REUTERS/Kim Kyung-Hoon