Behavior problems, such as temper tantrums and toilet-training troubles, may be warning signs of childhood asthma. Researchers followed 265 children ages 35 months to 53 months who had been diagnosed with skin allergies, which boost the odds of developing asthma. Those children who acted out more often were more likely to go on to be diagnosed with asthma. If you’re concerned about your child’s behavior and asthma risk, talk to your child’s doctor.

- Psychosomatic Medicine