https://i.cbc.ca/ais/21526a73-1fc2-45c7-b81a-7cc56ea70f73,1783639308132/full/max/0/default.jpg?im=Crop%2Crect%3D%28123%2C30%2C2821%2C1586%29%3BResize%3D%28620%29" title="Young guests attend the Family Festival Street Fair & Tribeca ESPN Sports Day during the 2008 Tribeca Film Festival on May 3, 2008 in New York City." width="620" />
Rather than relying on willpower, a key to success could be to avoid temptations in the first place, say some scientists in this field.