en <span style=font-size:10pt><span style=unicode-bidi:embed><span new= roman= style=font-family: times=><b><span cambria= lang=EN-PH style=font-family:>Aims: </span></b><span cambria= lang=EN-PH style=font-family:>A healthy lifestyle reduces the mortality from diseases such as cardiovascular diseases and diabetes mellitus. This study aimed to assess the effectiveness of an online health and well-being program in improving physical activity, nutrition, and sleep in college students. </span></span></span></span><br> <span style=font-size:10pt><span style=unicode-bidi:embed><span new= roman= style=font-family: times=><b><span cambria= lang=EN-PH style=font-family:>Materials & Methods:</span></b><span cambria= lang=EN-PH style=font-family:> The present study utilized a quantitative methodology, mainly a two-group pretest-posttest design on 178 college students. The experimental group received three months of a health and well-being program while the control resumed their daily activities. The participants answered an adapted online questionnaire divided into socio-demographic and physical activity, nutrition, and sleep data. Data were analyzed using SPSS 27 software.</span></span></span></span><br> <span style=font-size:10pt><span style=unicode-bidi:embed><span new= roman= style=font-family: times=><b><span cambria= lang=EN-PH style=font-family:>Findings: </span></b><span cambria= lang=EN-PH style=font-family:>In both experimental and control groups, the participants’ physical activity in a day was at an average level. Moreover, the frequency of eating nutritious foods in a week was at an average level for both groups. In terms of hours of sleep per night, the total pretest and posttest mean scores for the experimental and control groups indicated that the participants’ hours of sleep per night are at a below-average level. In terms of physical activity, nutrition, and hours of sleep per night, there was no statistically significant difference between the pretest and posttest for both groups (p>0.05).</span></span></span></span><br> <span style=font-size:10pt><span style=unicode-bidi:embed><span new= roman= style=font-family: times=><b><span cambria= lang=EN-PH style=font-family:>Conclusion:</span></b><span cambria= lang=EN-PH style=font-family:> There is no evidence of a significant difference between college students' physical activity, nutrition, and sleep after the online health well-being program. </span></span></span></span><br> College Students,Nutrition,Sleep,Physical Activity,Health,CBT 29 36 http://hehp.modares.ac.ir/browse.php?a_code=A-10-67287-1&slc_lang=en&sid=4