Several years ago people told me the microwave oven was going to cause all kinds of adverse health effects. One really peculiar health effect was it could cause sterility in men. I bought a microwave oven anyway. Been using that appliance about 3 decades to prepare meals for my husband and children. Notice I said “children”? Yeah. We have 11 kids; 6 girls, 5 boys. Some I gave birth to before we purchased a microwave oven. Some were born after. Fortunately, though I don’t own a smartphone. Guess I shouldn’t take any chances. Might not be so lucky.