https://www.khanacademy.org/science/health-and-medicine/executive-systems-of-the-brain/drug-abuse-and-drug-addictions/v/psychoactive-drugs-depressants-and-opiates 2024-02-09T21:30:53.441494697Z Psychoactive drugs: Depressants and opiates Psychoactive drugs alter consciousness, affecting perceptions and moods. Depressants, like alcohol and benzodiazepines, slow neural activity and can disrupt sleep, memory, and learning. Opiates, such as heroin and morphine, treat pain by acting on endorphin receptors. Both depressants and opiates can be addictive and require careful prescription. Carole Yue video https://cdn.kastatic.org/googleusercontent/mKFku7nmavtO_iSi4y-6l7L1CFDnj_zPxeRS3_sgLpytqT9F7U-fydTKp1tgoFNLb_8aNwUAJlvajw0cqV2iBn8 Psychoactive drugs: Depressants and opiates Psychoactive drugs alter consciousness, affecting perceptions and moods. Depressants, like alcohol and benzodiazepines, slow neural activity and can disrupt sleep, memory, and learning. Opiates, such as heroin and morphine, treat pain by acting on endorphin receptors. Both depressants and opiates can be addictive and require careful prescription. https://cdn.kastatic.org/ka-youtube-converted/dOlkogaWF3M.mp4/dOlkogaWF3M.mp4 267 Lifestyle and Health https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:disease-and-immunity/x2a084a90105205d2:lifestyle-and-health/v/substance-use-disorders-2 2024-02-09T21:30:53.441494697Z Substance use disorders Substance use disorders occur when drug use impairs daily life. This video explains how substances affect the body during intoxication and withdrawal. It also discusses substance-induced disorders and the development of substance use disorders. Key factors include increased use, cravings, withdrawal symptoms, and tolerance. Severity ranges from mild to severe. Arshya Vahabzadeh video https://cdn.kastatic.org/googleusercontent/ceXRIVmDMCRq_-N9Mg1koUl3IkEnkPfT6HTuBYujLKsjAt1kup9-fPAgsZOIBSBgZmuHDMIyU1muwtOYbBKPM89R Substance use disorders Substance use disorders occur when drug use impairs daily life. This video explains how substances affect the body during intoxication and withdrawal. It also discusses substance-induced disorders and the development of substance use disorders. Key factors include increased use, cravings, withdrawal symptoms, and tolerance. Severity ranges from mild to severe. https://cdn.kastatic.org/ka-youtube-converted/tPhcRBkVmUM.mp4/tPhcRBkVmUM.mp4 451 Lifestyle and Health https://www.khanacademy.org/science/health-and-medicine/respiratory-system-diseases/chronic-bronchitis/v/rn-what-is-chronic-bronchitis 2020-07-15T21:03:12Z What is chronic bronchitis? Amy Fan video https://cdn.kastatic.org/googleusercontent/7HH5-GzADh5uB3O8stPhpNLJ42-c9fYuFrVfTo7gdKVts6Uu1kc0974cP1WusywF0dePs8FbrhrLePg3Qtfr1eA What is chronic bronchitis? https://cdn.kastatic.org/ka-youtube-converted/B5e7RMaz4IQ.mp4/B5e7RMaz4IQ.mp4 497 Lifestyle and Health https://www.khanacademy.org/science/health-and-medicine/circulatory-system-diseases/stroke/v/risk-factors-for-stroke 2020-07-15T21:03:13Z Risk factors for stroke Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Vishal Punwani video https://cdn.kastatic.org/googleusercontent/xmuwnAmzWpHatxL7yefr4Iq2Nrdz4EDdj7o5huvaUWJgTr2VAmR9wZXzcrPNbQNHU8xNQibd10Ln3kdtdD4XsU_h Risk factors for stroke Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. https://cdn.kastatic.org/ka-youtube-converted/QskZ-o0egF8.mp4/QskZ-o0egF8.mp4 701 Lifestyle and Health