It is also important to note that several methodological and biological factors, such as sex, age, BMI, diurnal variations, fasting state, and, importantly, medications like anti-platelets commonly prescribed after stroke, have also been shown to significantly affect circulating BDNF levels.34,53 Although we made efforts to control for these variables, their influence on our findings cannot be ruled out entirely. Here, BDNF is linked to stroke disorder.