From minimalist wrist designs to full sleeves, body art has become so common that it barely raises an eyebrow.

According to the National Center for Health and Statistics, under the Centers for Disease Control and Prevention (CDC), ...

Many commonly used pigments can affect immune activity, trigger inflammation and reduce the effectiveness of vaccines ...

Your immune system is supposed to fight diseases and help your body recover. But in some cases, it may be weak, less active than necessary, overactive, or it may even attack ...

People can develop allergic reactions to the ingredients in tattoo ink. An allergic reaction to a tattoo can emerge years after a person gets tattooed. Medication may be necessary to treat the immune ...

During the recent Covid-19 pandemic, the rate of serious illness and death was jarringly high in older populations. Why? Weakening immune systems — as we age, we become more vulnerable to infections, ...