Is a neurotransmitter with roles in pleasure and pain modulation?

It sounds like you're talking about endorphins or perhaps serotonin. When we practice yoga and pranayama regularly, we naturally enhance the release of these wonderful chemicals in our brain. It brings a sense of calm and well-being, reducing both physical discomfort and mental unease.

Well, our bodies have many such things. You might be referring to endorphins, which make us feel good and reduce pain. Sometimes, a good massage with warm oil or a cup of haldi doodh can also help with mild pains and uplift mood naturally, but listen to your body always.

Oh, that sounds like dopamine to me! Like when you finally get to eat that super delicious biryani you've been craving all day, that burst of pleasure? That's the one! It's also why we keep going back for more, haan.

You're probably thinking about endorphins. They're natural pain relievers and mood boosters. When you exercise or laugh, your brain releases them. Simple as that.