Spring is a great time to reboot your New Year’s resolutions, or to clean up your health as the seasons change. But as we work to change or improve our habits and clean our homes, we may hear a few misconceptions about springtime health. Let’s fact-check these common spring health myths.

1. Change in temperature makes you sick.

This old wives’ tale appears with every major change in season. A few degrees–particularly in gradual increments, the way our seasons normally work–don’t weaken or strengthen your immune system. Rather, the change of seasons causes different plants to bloom, and other allergens to spread.

2. You can’t get allergies when you’re older.

Allergies actually can start at any point in life, not just as a child. Your immune system–the real culprit behind your allergies–changes and gets stronger or weaker just like the rest of you. Talk to your doctor if you’ve been having frequent allergy symptoms like itchy or watery eyes, difficulty breathing, or sneezing.

3. You should get a base tan before summer.

Tanning beds carry quite the risk for developing melanoma, particularly if you begin tanning under the age of 35. And being a bit more tan before a summer of sunbathing won’t minimize the effects of UV rays. If you do want a tan appearance, use sunless tanning sprays and lotions as directed, rather than resorting to a tanning bed before beach season.

4. You can get right back into running now that it’s nice outside.

If you’ve taken a long winter break from running, don’t try to get back up to your previous speed and distance. Doing this without regaining your old endurance and strength can increase your risk for stress fractures, shin splints, and muscle strains. Be sure to start slowly and build back up to your previous abilities again.

5. Ticks don’t come out until summer.

The peak of tick season actually begins as soon as it’s warm enough for us to venture outdoors! Many people believing they’re safe until summer put themselves at risk for Rocky Mountain spotted fever and Lyme disease. If you’re thinking of camping, hiking, and going through thickly wooded or grassy areas during the spring, take precautions against ticks. Wear DEET-based repellents, long shirts and jackets when you can, and clothing containing permethrin. If you go through these areas, or even your backyard in certain areas, check your clothing and body for ticks. For detailed information on removing ticks, the CDC has many helpful tips.