Simpson, 39, collapsed at a community track meet on June 16 in Raleigh, North Carolina.

Olympic 1,500-meter bronze medalist and world champion Jenny Simpson remains under medical care Thursday but shows "encouraging improvement" after collapsing while pacing a mile group at an event in ...

Three-time Olympian Jenny Simpson, a bronze medalist in Rio, is showing "encouraging improvement" after collapsing during a track and field event.

Olympic bronze medalist and world champion 1,500-meter runner Jenny Simpson collapsed after suffering a medical episode at the Sir Walter Miler.

Three-time U.S. Olympian and 2016 bronze medalist Jenny Simpson collapsed during a community run in Raleigh, N.C. She reportedly lost her pulse and was revived with CPR and a defibrillator.

Olympic runner Jenny Simpson collapsed on the track during an event in North Carolina and received CPR before being rushed to the hospital ...

Olympic bronze medalist Jenny Simpson was transported to a North Carolina hospital on Tuesday after collapsing during a track event, according to the Associated Press. Simpson was attending a ...

Olympic medallist Jenny Simpson is making 'encouraging improvement' in hospital after collapsing at an event in Raleigh, North Carolina.

American Olympic bronze medallist and world champion 1,500m runner Jenny Simpson collapsed after suffering a medical episode while pacing a mile group at an event in Raleigh, North Carolina. Simpson ...

Olympic medallist Jenny Simpson is released from hospital after suffering a cardiac arrest while running at an event in the United States last week.

Olympic medalist Jenny Simpson receiving treatment in hospital following a "medical incident" at an event in Raleigh, North ...

The 2016 Rio Olympics bronze medalist was pacing a group of runners during a pop-up event in North Carolina when she collapsed ...