I would be wary with different meditation practices. I don't think it's a one-size-fits all. Zen Buddhism and other traditions have very long history and exper

I would be wary with different meditation practices. I don't think it's a one-size-fits all. Zen Buddhism and other traditions have very long history and experience with meditation. Now the West unfortunately sometimes imports ideas superficially, and meditation might be one of them. 'Mindfulness meditation' seems to have specific suggestions that probably haven't stood the test of time (or scientific evidence as mentioned). However, sitting a few minutes quietly (without worrying about specific technique) shouldn't do any harm, is probably good for you. Also very emphasized in those traditions is controlled breathing. It can be very helpful when stressed as well. If it makes you feel unwell, stop doing it! Also maybe consult with someone with experience.