The mast cell, a type of white blood cell, is the immune system's first line of defense, but can overreact to certain stimuli — and that's when things get complicated.
It's a tricky spring season for anyone who typically struggles with allergies (which grass and trees are high right now) and those with asthma following a warm winter and a Covid-19 spring to this point.
It may not come as a surprise to some that New Jersey has received an 'F' grade for its quality of air in a report just released by the American Lung Association.