Many common concerns about germs and infectious diseases are overblown, according to infectious-disease experts. These professionals suggest that people often worry unnecessarily about everyday exposures, leading to excessive caution that can be detrimental.

Hand sanitizer, for instance, is often perceived as a lesser option compared to handwashing. However, experts like Dr. Stephanie Roberts note that hand sanitizers are effective. "A lot of people ask, ‘Well, can I just use the hand sanitizer?’" Roberts said. "And sure—they’re very effective."

Roberts advocates for using hand sanitizer when soap and water are not readily available, particularly before eating while on the go. "Just pop one of those things into your bag, and hit that hand sanitizer before you pick up a hamburger," she suggests. However, she points out that alcohol-based sanitizers are not effective against certain pathogens, such as norovirus. In situations where norovirus might be present, such as near someone vomiting or experiencing diarrhea, washing thoroughly with soap and water is recommended. Additionally, hand sanitizer is less effective on visibly dirty hands.

Another area of concern for many is the perceived danger of everyday objects like phones and unwashed sheets. Experts indicate that the risk associated with these items is often exaggerated. The idea of living in a "bubble" to avoid all possible risks is unrealistic and potentially harmful to mental well-being, according to Dr. Charlotte Torres. "You can end up wanting to live in a bubble and never go outside—and that’s just impossible," she said. "If you go too far down the rabbit hole, you get a little depressed."

This perspective challenges the notion that all visible dirt or lack of immediate sanitization poses a significant health threat. The overarching message from these experts is that a balanced approach to hygiene, recognizing which risks are truly significant and which are not, is key to maintaining both physical and mental health without succumbing to germophobia.