Immune是什么意思？

For example, social contact can boost development of the brain and immune system, leading to better health and less chance of depression later in life.

"When people are sleep-deprived, there are higher levels of stress hormones in their bodies which can decrease immune function," says Doctor Felice, of Northwestern University in Chicago.

For example, 10 bacteria or less of an especially deadly strain of bacteria can cause severe illness and death in people with compromised immune systems.

My research focus is on what happens to our immune system as we age.

So the job of the immune system is to fight infections.

This is evidence that our immune system really doesn't function so well when we age.

Once infected, one will become immune to Ebola.

Many doctors and researchers believe that loneliness harms the immune system, making us more vulnerable to a range of miner and major illnesses.