  In this age of heterogeneous systems, diverse technologies are integrated to
create application-specific solutions. The recent upsurge in acceptance of
technologies such as cloud computing and ubiquitous Internet has cleared the
path for Internet of Things (IoT). Moreover, the increasing Internet
penetration with the rising use of mobile devices has inspired an era of
technology that allows interfacing of physical objects and connecting them to
Internet for developing applications serving a wide range of purposes. Recent
developments in the area of wearable devices has led to the creation of another
segment in IoT, which can be conveniently referred to as Wearable Internet of
Things (WIoT). Research in this area promises to personalize healthcare in
previously unimaginable ways by allowing individual tracking of wellness and
health information. This chapter shall cover the different facets of Wearable
Internet of Things (WIoT) and ways in which it is a key driving technology
behind the concept of personalized healthcare. It shall discuss the theoretical
aspects of WIoT, focusing on functionality, design and applicability. Moreover,
it shall also elaborate on the role of wearable sensors, big data and cloud
computing as enabling technologies for WIoT.
