Warm up to turkey chili

(HealthDay)—When cold weather hits, a hot bowl of chili is a great way to fuel up. High-protein turkey chili contains a lot less fat than traditional recipes, yet can deliver all the flavor.


Climate change may increase congenital heart defects

Rising temperatures stemming from global climate change may increase the number of infants born with congenital heart defects (CHD) in the United States over the next two decades and may result in as many as 7,000 additional ...


Soup's on: Quick, nutritious, figure-friendly recipes

(HealthDay)—Making soup is an easy way to get your veggies while having a warming, low-calorie meal. Soups can also double as easy lunches that just need re-heating. Here are two to try:


Winter's many challenges to eye health

(HealthDay)—Dry, itchy eyes are a common problem in the winter and low humidity is a major reason, one ophthalmologist says.

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In physics and thermodynamics, heat is the process of energy transfer from one body or system to another due to a difference in temperature. In thermodynamics, the quantity TdS is used as a representative measure of the (inexact) heat differential δQ, which is the absolute temperature of an object multiplied by the differential quantity of a system's entropy measured at the boundary of the object.

A related term is thermal energy, loosely defined as the energy of a body that increases with its temperature. Heat is also loosely referred to as thermal energy, although many definitions require this thermal energy to actually be in the process of movement between one body and another to be technically called heat (otherwise, many sources prefer to continue to refer to the static quantity as "thermal energy"). Heat is also known as "Energy".

Energy transfer by heat can occur between objects by radiation, conduction and convection. Temperature is used as a measure of the internal energy or enthalpy, that is the level of elementary motion giving rise to heat transfer. Energy can only be transferred by heat between objects - or areas within an object - with different temperatures (as given by the zeroth law of thermodynamics). This transfer happens spontaneously only in the direction of the colder body (as per the second law of thermodynamics). The transfer of energy by heat from one object to another object with an equal or higher temperature can happen only with the aid of a heat pump, which does work.

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