Democratic presidential candidate, Sen. Bernie Sanders (I-VT), speaks during his event at Nashua Community College on December 13, 2019 in Nashua, New Hampshire.
Democratic presidential candidate, Sen. Bernie Sanders (I-VT), speaks during his event at Nashua Community College on December 13, 2019 in Nashua, New Hampshire.
PHOTO: Scott Eisen/Getty Images
Now playing
02:23
Sanders releases health summary after heart attack
Now playing
04:13
Cooper: This is where Trump's thoughts were as lawmakers tried to survive
WILMINGTON, DELAWARE - JANUARY 08: U.S. President-elect Joe Biden delivers remarks before announcing members of his cabinet that will round out his economic team, including secretaries of commerce and labor, at The Queen theater on January 08, 2021 in Wilmington, Delaware. Biden announced he is nominating Rhode Island Gov. Gina Raimondo as his commerce secretary, Boston Mayor Martin J. Walsh his labor secretary and Isabel Guzman, a former Obama administration official, as head of the Small Business Administration. (Photo by Chip Somodevilla/Getty Images)
WILMINGTON, DELAWARE - JANUARY 08: U.S. President-elect Joe Biden delivers remarks before announcing members of his cabinet that will round out his economic team, including secretaries of commerce and labor, at The Queen theater on January 08, 2021 in Wilmington, Delaware. Biden announced he is nominating Rhode Island Gov. Gina Raimondo as his commerce secretary, Boston Mayor Martin J. Walsh his labor secretary and Isabel Guzman, a former Obama administration official, as head of the Small Business Administration. (Photo by Chip Somodevilla/Getty Images)
PHOTO: Chip Somodevilla/Getty Images
Now playing
04:26
Biden: 'A good thing' Trump's not attending inauguration
WASHINGTON, DC - MAY 05: Sen. Ben Sasse, D-Neb., right, speaks during a Senate Intelligence Committee nomination hearing for Rep. John Ratcliffe, R-Texas, on Capitol Hill in Washington, Tuesday, May. 5, 2020. The panel is considering Ratcliffe
WASHINGTON, DC - MAY 05: Sen. Ben Sasse, D-Neb., right, speaks during a Senate Intelligence Committee nomination hearing for Rep. John Ratcliffe, R-Texas, on Capitol Hill in Washington, Tuesday, May. 5, 2020. The panel is considering Ratcliffe's nomination for director of national intelligence. (Photo by Andrew Harnik-Pool/Getty Images)
PHOTO: Pool/Getty Images North America/Getty Images
Now playing
01:44
See what GOP senator said about impeaching Trump
PHOTO: CNN
Now playing
02:47
Former WH official on Trump: We can't stand by the man
PHOTO: CNN
Now playing
01:03
Clyburn: This is the problem with attempting impeachment
klobuchar pence cpt vpx
klobuchar pence cpt vpx
PHOTO: CNN
Now playing
01:49
Hear why Klobuchar fist-bumped Pence after Electoral certification
john avlon reality check
john avlon reality check
Now playing
03:07
Avlon: We need accountability for attempt to overthrow democracy
Now playing
04:32
Brad Raffensperger reacts to Capitol riots
Trump supporters gather outside the Capitol, Wednesday, Jan. 6, 2021, in Washington. As Congress prepares to affirm President-elect Joe Biden
Trump supporters gather outside the Capitol, Wednesday, Jan. 6, 2021, in Washington. As Congress prepares to affirm President-elect Joe Biden's victory, thousands of people have gathered to show their support for President Donald Trump and his claims of election fraud. (AP Photo/John Minchillo)
PHOTO: John Minchillo/AP
Now playing
03:19
Aides shaken by Trump's behavior during riots
White House chief of staff John Kelly listens as U.S. President Donald Trump speaks at a briefing with senior military leaders in the Cabinet Room of the White House October 5, 2017 in Washington, D.C.
White House chief of staff John Kelly listens as U.S. President Donald Trump speaks at a briefing with senior military leaders in the Cabinet Room of the White House October 5, 2017 in Washington, D.C.
PHOTO: Andrew Harrer/Pool/Getty Images
Now playing
01:30
John Kelly says he would vote to invoke 25th Amendment
Elaine Chao, U.S. secretary of transportation, speaks during the White House State Leadership Day conference in Washington, D.C., U.S., on Tuesday, Oct. 23, 2018.
Elaine Chao, U.S. secretary of transportation, speaks during the White House State Leadership Day conference in Washington, D.C., U.S., on Tuesday, Oct. 23, 2018.
PHOTO: Al Drago/Bloomberg/Getty Images
Now playing
01:38
Trump cabinet secretary set to resign following Capitol riot
WILMINGTON, DELAWARE - JANUARY 07: U.S. President-elect Joe Biden delivers remarks as vice president-elect Kamala Harris (R) looks on before announcing his choices for attorney general and other leaders of the Justice Department at The Queen theater January 07, 2021 in Wilmington, Delaware. Biden nominated Judge Merrick Garland to be attorney general, Lisa Monaco to be deputy attorney general, Vanita Gupta to be associate attorney general, and Kristen Clarke to be assistant attorney general for the Civil Rights Division. (Photo by Chip Somodevilla/Getty Images)
WILMINGTON, DELAWARE - JANUARY 07: U.S. President-elect Joe Biden delivers remarks as vice president-elect Kamala Harris (R) looks on before announcing his choices for attorney general and other leaders of the Justice Department at The Queen theater January 07, 2021 in Wilmington, Delaware. Biden nominated Judge Merrick Garland to be attorney general, Lisa Monaco to be deputy attorney general, Vanita Gupta to be associate attorney general, and Kristen Clarke to be assistant attorney general for the Civil Rights Division. (Photo by Chip Somodevilla/Getty Images)
PHOTO: Chip Somodevilla/Getty Images
Now playing
06:33
Biden: Capitol attack 'one of the darkest days' in US history
Graham on chaos
Graham on chaos
PHOTO: CNN
Now playing
02:29
Graham criticizes Trump and Giuliani over Capitol riots
Now playing
02:31
See what Trump supporters had to say after chaos at Capitol Hill
PHOTO: pool
Now playing
01:35
Pelosi calls for invoking 25th Amendment to remove Trump
(CNN) —  

Sen. Bernie Sanders is in “good health,” nearly three months after suffering a heart attack, the attending physician at the US Capitol said in a letter released Monday.

The physician, Brian Monahan, said in a summary of the Vermont senator’s health that Sanders is no longer taking several of the medications initially prescribed to him after the heart attack.

“Several of the medications you initially required (blood-thinner, beta blocker) were stopped based on your progress,” Monahan wrote. “Your heart muscle strength has improved. You have never had symptoms of congestive heart failure. The heart chamber sizes, wall thickness, estimated pressures, and heart valves are normal. Several 24-hour recordings of your heart electrical activity indicated no significant heat rhythm abnormality.”

Later in the letter, Monahan said: “You are in good health currently and you have been engaging vigorously in the rigors of your campaign, travel, and other scheduled activities without any limitation.”

Monahan’s letter notes that the 78-year-old Sanders is 6 feet tall and weighs 174 pounds.

The campaign also released two additional letters from physicians at the University of Vermont, who have examined Sanders since his heart attack earlier this year, saying that Sanders is in good health and making a strong recovery. The doctors, Philip Ades, Patrick Savage and Martin LeWinter, said they believed Sanders is fit to serve as president.

Sanders underwent a cardiopulmonary exercise tolerance test on December 11. The test predicts outcomes in patients with a cardiac condition, and found his overall test performance “rated above average compared to a reference population of the same age,” the doctors wrote.

On October 1, Sanders was rushed to an urgent care facility following a grassroots fundraiser in Las Vegas after experiencing chest pains. Sanders then was taken to the hospital in an ambulance. Less than two and a half days later, Sanders left Desert Springs Hospital Medical Center, that his campaign confirmed the Vermont senator had suffered a heart attack.

After being discharged from the hospital, Sanders spent over a week at home in Burlington, Vermont, going on walks with his wife, Jane, and periodically inviting television cameras into his home to talk about his health scare. Sanders’ first public appearance after his heart attack was the Democratic debate in Westerville, Ohio, just two weeks after the incident.

Being the oldest candidate in the race, at 78, and having suffered a heart attack, there was much concern over how Sanders would recover and whether he would be able to return to the trail.

But the heart attack appears to have created a bounceback for the senator. The night of the October debate, news broke that New York Democratic Rep. Alexandria Ocasio-Cortez was going to endorse Sanders. A few days later, the pair hosted a rally in Ocasio-Cortez’s backyard in Queens, during which she officially endorsed the senator.

“To put it bluntly, I am back,” Sanders said to a booming crowd on October 19 in Queens.

Since then, Sanders has received the endorsements of Ocasio-Cortez’s Capitol Hill cohorts, Reps. Ilhan Omar and Rashida Tlaib. He’s also resumed a vigorous campaign schedule with multiple events a day.

Sanders is not the first candidate to release his medical information. Earlier this month, former Vice President Joe Biden, Massachusetts Sen. Elizabeth Warren and former New York Mayor Michael Bloomberg – all in their 70s – released reports or letters from their doctors.