By Arun Kumar 

Washington, Aug 1 (IANS): As the US presidential race hots up, Hillary Clinton's personal physician released a statement saying she is physically fit to serve as president with health issues resulting from a 2012 health scare resolved.

The health declaration came amid release of her tax returns from 2007 to 2014 and a separate State Department release of emails from Clinton's tenure as Secretary of State.

"Clinton is a healthy 67-year old female whose current medical conditions include hypothyroidiam and seasonal pollen allergies," wrote Lisa Bardack, Clinton's doctor since 2001, in a Health Statement provided by Clinton's campaign.

The health statement said the blood clot, also known as a thrombosis, that Clinton suffered between her brain and skull following a fainting spell and concussion in late 2012 is completely resolved.

"She had follow-up testing in 2013, which revealed complete resolution of the effects of the concussion as well as total dissolution of the thrombosis. Clinton also tested negative for all clotting disorders," Bardack wrote.

But as a precaution, Clinton remains on daily blood thinners, something her husband previously revealed.

Clinton takes Coumadin, the brand name for the blood thinner warfarin. She also takes Armour Thyroid for her hypothyroidism, antihistamines and Vitamin B12.

Clinton has no known drug allergies, does not smoke, use tobacco products or illicit drugs and drinks occasionally. Her exercise regime includes yoga, swimming, walking and weight training.

Meanwhile, according to the tax returns released by Clinton on Friday, she and her husband former president Bill Clinton earned $139 million between 2007 and 2014.

They paid nearly $44 million in federal taxes during that period. The couple's effective federal tax rate ranged from 25 percent in 2007 to 36 percent last year.

The Clintons paid another 7 to 12 percent of their income in state income taxes each year, and gave between 8 and 15 percent to charity.

Much of the couple's income came from giving paid speeches.

"We've come a long way from my days going door-to-door for the Children's Defence Fund and earning $16,450 as a young law professor in Arkansas," Hillary Clinton said. "And we owe it to the opportunities America provides."