This demands a brief history lesson. In 1994, as dinosaurs lay gasping their final breaths, the
World Wide Web Consortium (www.w3.org) was formed to promote common approaches and
interoperability for the Internet. Part of their work was to create web standards specifications
such as (X)HTML and CSS, evolving these specifications in line with the
Manipulate the HTML page while you are working on it
• Read and parse XML documents received from the server
• Create new XML documents
On the server side, you can use the DOM and PHP to:
• Compose XML documents, usually for sending them to the client
• Read XML documents received from various sources
It is estimated that there are nearly 350 million adults with diabetes. Type 2
diabetes accounts for over 90% of this burden. The International Diabetes
Federation (IDF) estimates that diabetes resulted in almost 4 million deaths
in 2007. The World Health Organization (WHO) estimates that the
number of people affected worldwide will grow to more than 470 million
by 2030, the majority in low to middle-income countries. A powerful dose
association exists between obesity and the risk of developing type 2 diabetes
(Figure 1.1). The WHO estimates that more than 1 billion adults are over
their ideal body weight, at least 300 million of them being clinically obese.
The prevention of type 2 diabetes is a pressing public health issue. Translating
the results of studies that have shown that intensive lifestyle measures
i.e. weight reduction and increased levels of physical activity, can avert or
postpone progression to diabetes is a formidable challenge.
