Introduction

1. Summary of the basic properties of CSPs and HSPs

2. The notion of quantum criticality

3. Hagedorn temperature, HHC, and self-organized quantum criticality (SOC)

The basic ideas about SPs

1. Conditions on the heat transfer rates between the systems involved

2. A new physics model for HHC

3. Physiological temperature as Hagedorn temperature, local temperature regulation, and self organized quantum criticality

4. ΔC_p> 0 for HSP90-nucleotide binding as support for the model

5. Some functions of SPs in TGD perspective

6. Could 1/f noise be interpreted as a signature of time reversal?

Speculative mechanisms explaining some biological observations

1. Obesity, failing diets, and SPs

2. Sleigh dogs which run for days without eating, and starving bacterial colonies