Anxiety is an actual mental health issue that heavily influences sleep patterns. It also influences eating habits (emotional eating is a well-understood maladaptive coping mechanism) so the same argument can actually (in some, but not all, cases) apply to weight gain, yes.
Climate change? Air pollution? If you don't see how these are completely different problems that are completely unrelated to your mental well-being, I don't know what to say...
Weigh gain? Worrying about Weigh gain creates stress
Climate change? Worrying about climate creates stress
Air pollution? Worrying about air pollution creates stress
Of course, worrying about _anything_ creates stress. But that's as far as it goes: Worrying about air pollution creates stress, but stress doesn't create more air pollution. Worrying about climate change doesn't make climate change worse.
The problem is closing the loop — worrying about sleeplessness produces stress, which then goes on to make the sleep disorder even worse. Same with weight loss and emotional eating.
The "anxiety removal" leads to not caring about the problem.
Its not closing the loop. Its allowing the existing problem to escalate.
>Worrying about climate change doesn't make climate change worse.
If your quality of life is affected by climate change, worrying about it will reduce it further.
Or you can just schedule time to worry about things and have other time where you don't worry about things... it takes a bit of discipline, but if you worry about everything 24/7 you're going to be very unhealthy.
Worrying about air pollution creates stress which combined with air pollution itself, reduces health more than air pollution alone.
How hard is it to understand?
Climate change? Air pollution? If you don't see how these are completely different problems that are completely unrelated to your mental well-being, I don't know what to say...