Pets have been proven to lower blood pressure so yes.
Only temporarily.
Mating rituals of dogs normally last 2 days. First they fight, then they calm down and she will allow the stud to breed.
It wont hurt and it will surely calm them down.
Bulldogs are calm and very gentle dog.
what you should do is sound proof your basement then when the fireworks start put your dog down there and it should keep it calm.
Walk with him/her or play with him/her. If this does not work try giving him/her treats or food to calm them down. Or it might just be a puppy thing. If your dog gets to be at least 5 years old and still that same hyper puppy check the question "What do you do when a dog's too hyper?". I have an answer with some more tips and tricks on how to calm down your dog.
you say bad dog and put he or her in his or hers bed!
try to separate them trust and believe it works
Neutering very commonly "calms a dog down", but there are no guarantees in that, of course.
He just thinks he can do whatever he wants
More walks, exercise and stimulation.
A female is in heat about 2 weeks from the beginning of bleeding
Stay calm. But you may have to sedate him or take him to the vet. Please try not to scare the dog. If you are calm, so is your dog. Simply wait until he is calm, and pin him down gently as if you are playing with him. Stay careful. Then try your best to remove the hook.