hot and cold

hot and cold

1. Of one's body, both hot and cold at once, as from shock or illness. After the pneumonia took hold, she was hot and cold all night.
2. Alternating between two opposite states, especially being enthusiastic or interested one moment and disinterested the next. He was hot and cold throughout our entire date, so I have no idea if he wants to see me again.
See also: and, cold, hot
Farlex Dictionary of Idioms.

hot and cold

BRITISH
If someone or something makes you feel hot and cold, they make you feel extremely worried or nervous, and this causes you to feel as if your body is both hot and cold at the same time. When she realized what she was reading she grew hot and cold all over.
See also: and, cold, hot
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • be hot and cold
  • feel hot and cold
  • the common cold
  • take cold
  • (as) cold as any stone
  • cold one
  • catch a cold
  • a cold shower
  • cold shower
  • shower
References in classic literature
"I will have nought to do with a man who can blow hot and cold with the same breath."
Fables
The study examined the shelf-life of coffee extracted using both hot and cold water by analysing sensory and chemical profiles as well as microbial growth.
Cold Brew and Nitro Coffee on Tap for Growth
For hot and cold food and non-alcoholic beverages or similar commodities.
Belfast City Council Street Trading Act (Northern Ireland) 2001; Public Notices
Researchers have found chemical differences between hot and cold brew coffee that may have health impacts.
Coffee lovers! Your hot brew has higher antioxidant levels
Results published in the journal "Scientific Reports" also found that pH levels -- acidity indicator-- of both hot and cold coffee were similar, ranging from 4.85 to 5.13 for all coffee samples tested.
Hot coffee contains more antioxidants than cold coffee
It prevents the mixing of hot and cold air, which is the key to efficiency, by allowing higher work environment temperatures.
The rise of aisle containment structures
San Jose, CA, September 29, 2016 --(PR.com)-- Credence Research has recently issued a new market assessment report titled "Hot and Cold Therapy Packs - Growth, Future Prospects and Competitive Analysis, 2016 - 2022." The global Hot and Cold Therapy Packs Market study provides a comprehensive view of the ongoing and future phases of the Hot and Cold Therapy Packs industry based on parameters such as major commercial events, research initiatives, government guidelines, market drivers, restraints and opportunities and detailed industry segmentation and regional distribution.
Global Hot and Cold Therapy Packs Market 2022 - Industry Analysis, Market Size, Competitive Trends: Credence Research
NEW YORK -- Mass market retailers sold nearly $236 million worth of hot and cold packs in the 52 weeks ended July 13, according to IRI.
Solid demand spurs activity in hot/cold packs
2 shows the hot and cold bodies' energy consumption dependence on the velocity.
Peculiarities of the Leidenfrost effect application for drag force reduction/Leidenfrosto efekto ypatumai pasipriesinimo jegos mazinimui
-- Carex Health Brands has acquired the ThermiPaq hot and cold therapy product line from Thermionics Corp.
Carex expands hot/cold portfolio
* The Hot-Cold Massager ($59.99) provides relief by combining soothing massage with hot and cold therapy to offer a more holistic approach to muscle tension and soreness.
Come on people take care of yourself
This is because both hot and cold fluids within the plate heat exchanger are exposed to a much larger surface area per unit volume than that in the conventional (double pipe) heat exchanger [2].
Analysis of heat transfers inside counterflow plate heat exchanger augmented by an auxiliary fluid flow
The alternating hot and cold shower, known as contrast therapy, combines the inflammation-reducing benefits of ice with the circulation-improving benefits of heat.
Healing contrast: hot & cold