Covid health questions

This week, HuffPost UK reader Helen asked: "What is the damage to your health of wearing masks?"
People report the smell and taste of coffee, meat, onions, eggs or garlic becoming foul and acrid. But why?
HuffPost UK reader Gill asked: I heard research has shown reduced oestrogen makes you more vulnerable to bad Covid. Is this true?
Masks may be needed until we reach herd immunity, say experts. When will that be?
Certain conditions can fuel the spread of the coronavirus. This little trick can help you spot them.