Hitting The Wall

In endurance sports such as cycling and running, hitting the wall or the bonk describes a condition caused by the depletion of glycogen stores in the liver and muscles, which manifests itself by sudden fatigue and loss of energy. Milder instances can be remedied by brief rest and the ingestion of food or drinks containing carbohydrates. The condition can usually be avoided by ensuring that glycogen levels are high when the exercise begins, maintaining glucose levels during exercise by eating or drinking carbohydrate-rich substances, or by reducing exercise intensity.

Read more about Hitting The Wall:  Etymology, Usage, and Synonyms, Mechanisms, Effects, Avoidance, Bonk Training

Famous quotes containing the words hitting and/or wall:

    The toddler’s wish to please ... is a powerful aid in helping the child to develop a social awareness and, eventually, a moral conscience. The child’s love for the parent is so strong that it causes him to change his behavior: to refrain from hitting and biting, to share toys with a peer, to become toilet trained. This wish for approval is the parent’s most reliable ally in the process of socializing the child.
    Alicia F. Lieberman (20th century)

    Cooling, so cooling,
    with a wall against my feet,
    midday sleep—behold.
    Matsuo Basho (1644–1694)