This document discusses several big data projects in healthcare and social sciences. It outlines 3 projects: 1) Bip4Cast, which uses big data technologies to predict bipolar disorder episodes, 2) Wap Madrid, which analyzes social media data from Madrid, and 3) early prediction of affective and movement disorders from EEG data using machine learning. It also mentions challenges with medical big data like privacy, anonymization, and dealing with the variety, velocity and volume of data.