People who work shifts are at an increased risk to end up in hospital with COVID-19 than people who have regular work patterns.
Smokers and vegetarians are less likely to contract Covid-19 infection. Smoking may be protective due to its role in increasing the mucous production and vegetarian food rich in fiber may have a role to play in providing immunity against COVID-19 ...
Taking supplements like multivitamins, omega-3, probiotics or vitamin D may lessen the risk of testing positive for SARS-CoV-2 in women.
Covid-19 patients who are overweight or obese are more likely to be more at risk for severe infection. Also, they require oxygen and invasive mechanical ventilation more often.