How does consistent exercise change brain chemistry to overcome Social anxiety?

I have severe social anxiety, agaraphobia and everything that comes under this family . I know exercise can make it go away and if I am 100% healthy then my anxiety will be 0% .

But I am trying to find out how it works ? .. What causes this huge change in brain that eliminates this destructive negative thinking patterns ? Anyone has any insights into this issues , please explain to me . Thanks

How do you get rid of separation anxiety in dogs?

I have a year old border collie mix who has separation anxiety. She barks constantly and is destructive when we aren’t home. We are getting complaints from the neighbors. We have used muzzles, vibrating collars, and pharamone treatments to get her to stop and she still isn’t. We also have resorted to crating her. Any advice?

What things can you do for extreme anxiety?

I mean extremely bad anxiety where I feel like I’m constantly startled or scared of reality.My stomach has butterflys and I cannot sleep yet I’m tired.Any ideas or does anyone take good medication for this?

What are good things to have boyfriend who has general anxiety disorder?

What are good things to have boyfriend who has general anxiety disorder?
I heard that it’s hard to keep a relationship with one who has anxiety disorder. However some say that there are good things from the relationship… What r they?

What chemicals are imbalanced in the brain when you have anxiety?

My therapist told me the chemical that produces anxiety overloads the brain and then the other chemicals are blocked and not able to do there jobs or something like that. Can someone tell me what the chemicals are called and maybe some natural ways to take away the anxiety chemicals and replenish the other ones? Maybe a better explanation of it? I tried to look it up, but couldn’t really find what I was looking for online.

Thanks!
I looked into Seratonin if I increase that will it help the anxiety then?

Can anxiety cause you to have a hard time falling asleep and staying asleep?

Hi I have social anxiety and I stay up till 2 or 3 in the morning and I keep waking up.
What can I do to improve my sleeping?

My anxiety disorder is coming back; any tips for me to overcome it?

I’ve had an anxiety problem for about 5 months now, but in the last few weeks in seemed to be gone or very very mild. However, in the last day or two, it has come back every time I wake up. I saw my psychologist and he recommends that I just try to relax which has worked but I want other opinions on how to overcome it? Opinions please!

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What techniques have helped you manage anxiety and depression?

I have a dual diagnosis of bipolar and OCD, and I am trying to learn to manage my moods and anxiety/obsessions, and I was wondering if anyone out there couldtell me what helped you.