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Hi I'm Dr.
Manny would -- fox help fix health officials say the combination of hot weather.
And stagnant water in the US creates the perfect condition for breeding mosquitoes that's Brett West Nile Virus.
Nationally there are apparently reports of high rates of infected mosquitoes.
Had a spike in the number of people who are infected -- -- recommend wearing insect repellent and draining standing water to reduce your risk.
A lack of sleep -- just leave you cranky he could reduce the effectiveness of vaccines.
A large study finds that adults who sleep less than six hours tonight are less likely to be protected by vaccines -- viruses like hepatitis B.
Compared to those -- sleep more than seven hours.
Here's some surprising Olympic trivia about 8% of Olympic athlete suffered from -- month.
The survey finds Olimpia stake asthma drugs to treat their symptoms the condition is most common among -- police to take part.
-- endurance sports.
And researchers say extreme training could be the cause.
For more information on these stories -- all the latest health news visit Fox News -- dot com I'm Dr.
Manny Fox News.
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