However, while many may think this is because they have a lot of time together, it seems that it may in fact be their unique sleeping and home arrangements that keep their relationship strong.

Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, ...

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany ...