Trump to undergo his annual physical on Friday

• His physical is scheduled for 11am ET at Walter Reed National Military Medical Center.
• "I have never felt better, but nevertheless, these things must be done!" Trump said Monday on Truth Social.

Context: Trump, 78, promised to release records during the campaign, but instead became a historical outlier among presidential candidates by not doing so.

• He later became the oldest president ever inaugurated, after routinely attacking former President Biden's fitness and age.

Zoom in: More than 200 doctors and other medical professionals wrote a letter in October calling for Trump to release medical records.

• "Trump is falling concerningly short of any standard of fitness for office and displaying alarming characteristics of declining acuity," they wrote.

Flashback: Trump offered scant information about his health during the 2016 campaign, except a note from his doctor that claimed he'd be "the healthiest individual ever elected to the presidency." The doctor later said Trump dictated the letter.

• The most in-depth snapshot of Trump's health was in 2018, when a summary of his annual exam stated that he had high cholesterol and weighed 239 pounds.
• His weight increased to 243 pounds in 2019, with lower cholesterol levels.
• When Trump was hospitalized with COVID in 2020, his medical team offered conflicting accounts of his health status.

Go deeper: What we know about Trump's medical history