What is a likely consequence of having an impaired immune system?

Having an impaired immune system significantly affects the body's ability to defend itself against pathogens such as bacteria, viruses, and other harmful microorganisms. When the immune system is not functioning optimally, it cannot effectively identify and eliminate these invaders. This leads to a higher susceptibility to infections, meaning that an individual is more likely to contract diseases and illnesses that a healthy immune system would normally prevent.

In contrast, the other options indicate outcomes that are generally not associated with an impaired immune system. Increased energy levels, enhanced healing processes, and a lower risk of diseases are characteristics more aligned with a well-functioning immune response, which helps maintain overall health and promotes recovery from injuries and infections. Therefore, the consequence of a compromised immune system directly results in a greater vulnerability to infections.