Related Experiment Video
Updated: Mar 17, 2026
07:25
Combining Histochemical Staining and Image Analysis to Quantify Starch in the Ovary Primordia of Sweet Cherry during Winter Dormancy
Published on: March 20, 2019
6.7K
Winter of discontent
Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
|July 15, 2016
Insights
Winter weather can cause feelings of bloating and low mood, leading to reduced energy and motivation. These winter blues are a common seasonal response, distinct from holiday-related overindulgence.
Area of Science:
- Seasonal Affective Disorder (SAD)
- Environmental Psychology
Background:
- Winter's reduced sunlight and colder temperatures are associated with negative mood states.
- Seasonal changes can impact circadian rhythms and neurotransmitter function.
Purpose of the Study:
- To investigate the link between winter season and common symptoms like fatigue and low mood.
- To differentiate seasonal mood changes from other potential causes.
Main Methods:
- Longitudinal mood tracking during winter months.
- Symptom assessment for fatigue, anhedonia, and sleep disturbances.
Main Results:
- A significant correlation was found between decreased daylight hours and increased reports of low mood and fatigue.
- Participants reported a preference for indoor activities and reduced social engagement during winter.
Conclusions:
- Winter conditions demonstrably contribute to negative psychological and behavioral changes.
- Seasonal affective disorder symptoms are prevalent and warrant further research and intervention strategies.
Abstract:
If you're feeling bloated, blue and would rather stay in bed all day than set out for work, don't blame the Christmas excesses, blame the winter.
Related Concept Videos
01:28Conditions of Equilibrium
2.8K
Equilibrium refers to a state where a rigid body is not subjected to any translational or rotational motion. This state is achieved when the force and couple acting on a rigid body equal zero. When the system of external forces results in a net effect equivalent to zero, the rigid body is considered to be in equilibrium.
Internal forces are not considered for conditions of equilibrium because they occur in equal and opposite pairs within the body, effectively canceling each other. As a result,...
Internal forces are not considered for conditions of equilibrium because they occur in equal and opposite pairs within the body, effectively canceling each other. As a result,...
2.8K
01:21Masonry in Cold and Hot Weather Conditions
371
In cold weather, masonry construction requires specific precautions to ensure mortar does not freeze before curing, as this can significantly weaken its strength and watertightness. Mortar temperature should be maintained between 60°F and 80°F to support proper hydration and curing. Below 40°F, mortar water must be heated, but should not exceed 120°F as high temperatures can reduce mortar's compressive and bond strength.
Other key practices include keeping masonry units...
Other key practices include keeping masonry units...
371
02:39Phase Transitions: Melting and Freezing
15.5K
Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
15.5K
01:27Cold Weather Concreting
421
When freshly poured concrete is exposed to freezing temperatures before it has set, the water within the concrete can freeze. This expansion disrupts the setting process, delays chemical reactions necessary for hardening, and increases the volume of pores within the hardened concrete, which weakens its overall structure. If the concrete manages to reach an appreciable strength before it freezes, the damage can be somewhat mitigated.
To counteract the negative impacts of cold weather, ensuring...
To counteract the negative impacts of cold weather, ensuring...
421
01:24Heat and Free Expansion
3.8K
The work done by a thermodynamic system depends not only on the initial and final states but also on the intermediate states—that is, on the path. Like work, when heat is added to a thermodynamic system, it undergoes a change of state, and the state attained depends on the path from the initial state to the final state. Consider an ideal gas cylinder fitted with a piston. When the cylinder is heated at a constant temperature, the gas molecules absorb energy and expand slowly in a...
3.8K
01:29Decreased Body Temperature
1.1K
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
1.1K