This talk provides an overview of my work on technologies for awareness and regulation of emotions, with an emphasis on the value the human body in these processes. It outlines award winning research described in TOCHI and JMIR journals, and in flagship ACM Human-Computer Interaction conferences such as CHI and DIS. It covers findings from a systematic review of HCI work on affective health technologies, reviews of digital wellbeing apps and those for depression, together with several prototypes designed and evaluated with my research group and collaborators such as AffectiveHealth wearable system, smart materials interfaces, ThermoPixels toolkit for hybrid crafting of personalized arousal-based interfaces, and an exploration of vibrotactile interfaces for affect regulation. The talk articulates the value of this body of work for novel design implications for technologies aimed to support awareness and regulation of emotions. Most of the research described in the talk has been supported by the AffecTech: Personal technologies for affective health, an EC-funded Innovative Training Network.