[yndoendo]

Replace "some" with "lucky". Is that not what STEAM often tries to do, increase the probability of a positive outcome over a negative. Improve luck.

A person does not fight cancer. A person is lucky if the cancer treatments are effective and they survive. Modern day cancer treatments increase the luck of survival.

Some depression is self induced. Always and continually focusing on the negative of thee past. Seems like top post might of had this type. Time need to support the child replaced the time to keep playing back those scenarios in their head with the continue down the road of depression. Tied with changes to their environment.