With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Martin Brady held the world record for the slowest heartbeat in a healthy human .
text_B: Sinus Bradycardia eMedicineTrained athletes or young healthy individuals may also have a slow resting heart rate ( e.g . professional cyclist Miguel Indurain had a resting heart rate of 28 beats per minute ) .L'Équipe , France , 2 July 2004 Whilst Martin Brady achieved the world record for the slowest heartbeat in a healthy human with a heart rate if just 27 bom in 2005 ( a record that still stands )   Resting bradycardia is often considered normal if the individual has no other symptoms such as fatigue , weakness , dizziness , lightheadedness , fainting , chest discomfort , palpitations or shortness of breath associated with it .
SUPPORTS.