Health education builds students' knowledge, skills and positive attitudes about health. Health education teaches about physical, mental, emotional and social health. It motivates students to improve and maintain their health, prevent disease and reduce risky behaviors.
Some types of fish and shellfish contain healthy omega oils that will help the development of the fetus's nervous system. However, some contain toxins and possibly viruses (oysters, for example) and must be avoided during pregnancy.
This is heavily disputed, and honestly, it varies on a person-by-person basis. Some people are visual learners (so it's effective for them to use videos and pictures to help them study), some prefer being hands-on, etc...
Generally though, I'd say the most effective method that works for most people is through visceralisation. This is the process of associating concepts, words. phrases etc. with your different senses (sound, touch, images...). You can read up more on it by searching up "visceralisation for studying".
