Why do we need new flu shots every year?
With influenza virus, a new vaccine must be developed each year to adapt to the virus’s changing structure.
With influenza virus, a new vaccine must be developed each year to adapt to the virus’s changing structure.
Evidence suggests that people who’ve had COVID-19 may have some natural protection against the virus, but will have a much stronger immune response if they also get the vaccine.
Aducanumab is a newly approved drug for Alzheimer’s disease with the potential to reduce amyloid-beta plaque buildup in the brain. There are other medications being studied to see if they can reduce amyloid-beta, such as a monoclonal antibody that targets amyloid-beta before it forms plaques, and a monoclonal antibody that takes aim at plaque that has already formed. Other experimental approaches try to prevent tau tangles in brain cells, reduce brain inflammation, or reduce the amount of amyloid-beta that is produced.
We’ve all had times when we have eaten more than our share of some unhealthy food. We know it’s bad for us, but resisting feels impossible. The science of food cravings is complex, but often these urges happen not because we are hungry but because of some other emotion that triggers the brain’s appetite signals. It’s possible to change these patterns, but it’s a challenge.
Eating a broad variety of fruits and vegetables is a good way to get a sufficient intake of flavonoids, chemicals that contribute to many aspects of health. Now, a study suggests that flavonoid-rich foods may also play a role in protecting memory and thinking as people get older.
Most of the time body odor isn’t a problem and a shower will quickly wash it away. But if you notice a change in body odor or you’re sweating much more than usual, it could be a sign of a medical condition that needs treatment.
Not all high cholesterol foods are bad for you. For example, eggs are high in cholesterol, but they’re also packed with protein and other nutrients. It’s the foods that are high in saturated fat that you need to worry about, because they can raise your cholesterol levels AND make you gain weight.