Is beta contagious? Asking for a friend
Absolutely. But so is alpha. People radiate their feelings and emotions at all times. You can look up
Emotional Contagion for more info about the effect. That's the explanation behind the saying "You are the average of the 5 people you spend the most time with"; Cause: you absorb the feelings and emotions of the people around you, and whoever you're around the most, you absorb more feelings and emotions from, naturally.
Although, if you meditate a lot, and get your self-esteem up, you can start to build up an immunity to the negative emotions (and technically positive feelings too) of others. Then you can stay calm in a wider variety of situations. That's what I call the unflappability effect.