What's the difference between relaxation and stress?

Relaxation


Definition:

  • (n.) The act or process of relaxing, or the state of being relaxed; as, relaxation of the muscles; relaxation of a law.
  • (n.) Remission from attention and effort; indulgence in recreation, diversion, or amusement.

Example Sentences:

  • (1) The vascular endothelium is capable of regulating tissue perfusion by the release of endothelium-derived relaxing factor to modulate vasomotor tone of the resistance vasculature.
  • (2) Arteries treated with atrial natriuretic peptide showed no alterations in relaxation or cGMP content after incubation with pertussis toxin.
  • (3) For dental procedures requiring tracheal intubation, one could perhaps use non-depolarizing muscle relaxants, like pancuronium, with reversal at the end of the procedure.
  • (4) In in vitro preparations GABA (10(-7) - 10(-3) M) elicited a dose-dependent relaxation; a decrease in the spontaneous contractions was sometimes observed.
  • (5) Anaesthesia was achieved by a mixture of oxygen, nitrous oxide and fluothane without use of muscle relaxants.
  • (6) A more accurate fit of T1 data using a modified Lipari and Szabo approach indicates that internal fast motions dominate the T1 relaxation in glycogen.
  • (7) Endothelium-dependent relaxations to acetylcholine and endothelium-independent relaxations to nitric oxide were observed in rings from both strains during contraction with endothelin.
  • (8) Relaxation situations are marked by relaxation, usually after a meal.
  • (9) The rabbits were either breathing spontaneously or were ventilated by a phrenic nerve-controlled servorespirator without the use of muscle relaxants.
  • (10) For each RG patient, two sex, age, and initial diastolic blood pressure (DBP) matched controls were found, obtaining thus a control group (CG) consisting of 70 hypertensive patients who were not participating in any relaxation program.
  • (11) Under the condition in which ryanodine (10-100 microM) treatment was found to cause the SR to be nonfunctional, pinacidil relaxation DRC remained unaltered, suggesting a lack of a stimulatory effect of pinacidil on SR Ca++ accumulation.
  • (12) which suggest that ~60-90% of the cross-bridges attached in rigor are attached in relaxed fibers at an ionic strength of 20 mM and ~2-10% of this number of cross-bridges are attached in a relaxed fiber at an ionic strength of 170 mM.
  • (13) Trimazosin at the dose used and under the conditions of study did not reverse the peripheral pressor effect of angiotensin II or B-HT920 but at higher concentrations, unlike prazosin, it relaxed the K+ contracted thoracic aorta.
  • (14) The relaxations in response to a nonreceptor-mediated endothelium-dependent vasodilator, A23187, and an endothelium-independent vasodilator, sodium nitroprusside, were not different between normal and diabetic aortas.
  • (15) Nitric oxide (NO) is a major component of endothelium-derived relaxing factor (EDRF) the synthesis of which from L-arginine can be inhibited by NG-monomethyl-L-arginine (L-NMMA).
  • (16) Binding to HSA occurs primarily with the imidazolidine and thiazolidine groups of levamisole as it has been demonstrated by selective changes in the relaxation times and the chemical shifts of the protons attached to the carbon atoms.
  • (17) We conclude that gastric adaptive relaxation remains abnormal in patients with postvagotomy diarrhoea but not in those who are asymptomatic or who have other symptoms.
  • (18) Nitric oxide (NO) induced tetrodotoxin-resistant NANC relaxation, similar to that induced by electrical stimulation or acetylcholine (ACh).
  • (19) Treatment of bacterial cells with inhibitors of gyrase at high concentration leads to relaxation of DNA supercoils, presumably through interference with the supercoiling activity of gyrase.
  • (20) The kinetics of extracellular neutral proteinase synthesis by an isogenic stringent (IS58) and a relaxed (IS56) strain of B. subtilis were compared.

Stress


Definition:

  • (n.) Distress.
  • (n.) Pressure, strain; -- used chiefly of immaterial things; except in mechanics; hence, urgency; importance; weight; significance.
  • (n.) The force, or combination of forces, which produces a strain; force exerted in any direction or manner between contiguous bodies, or parts of bodies, and taking specific names according to its direction, or mode of action, as thrust or pressure, pull or tension, shear or tangential stress.
  • (n.) Force of utterance expended upon words or syllables. Stress is in English the chief element in accent and is one of the most important in emphasis. See Guide to pronunciation, // 31-35.
  • (n.) Distress; the act of distraining; also, the thing distrained.
  • (v. t.) To press; to urge; to distress; to put to difficulties.
  • (v. t.) To subject to stress, pressure, or strain.

Example Sentences:

  • (1) It is supposed that delta-sleep peptide along with other oligopeptides is one of the factors determining individual animal resistance to emotional stress, which is supported by significant delta-sleep peptide increase in hypothalamus in stable rats.
  • (2) Stress is laid on certain principles of diagnostic research in the event of extra-suprarenal pheochromocytomas.
  • (3) It also provides mechanical support for the collateral ligaments during valgus or varus stress of the knee.
  • (4) When you have been out for a month you need to prepare properly before you come back.” Pellegrini will make his own assessment of Kompany’s fitness before deciding whether to play him in the Bournemouth game, which he is careful to stress may not be the foregone conclusion the league table might suggest.
  • (5) The most common reasons cited for relapse included craving, social situations, stress, and nervousness.
  • (6) The intent of this study was to investigate, by three-dimensional photoelastic analysis, the stress transmission that occurs with four commonly used retentive systems.
  • (7) Studies were conducted to evaluate the effects of acute (24 h) thermal stress on anterior pituitary function in hens.
  • (8) The temporary loss of a family member through deployment brings unique stresses to a family in three different stages: predeployment, survival, and reunion.
  • (9) These results indicate that during IPPV the increased Pcv attenuates the pressure gradient for venous return and decreases CO and that the compensatory increase in Psf is caused by a blood shift from unstressed to stressed blood volume.
  • (10) Rigidly fixing the pubic symphysis stiffened the model and resulted in principal stress patterns that did not reflect trabecular density or orientations as well as those of the deformable pubic symphysis model.
  • (11) Subtle differences between Chicago urban and Grand Forks rural climates are reflected in arthritic subjects' degree of pain and their perception of pain-related stress.
  • (12) He stressed the importance of the motivation to the mother for breast feeding and the independence between levels of instruction and frequency of breast feeding.
  • (13) Since this test is easily performed and hardly stresses the patient, it should routinely be the initial one for the diagnosis of renal osteopathy.
  • (14) The structure of L-carnitine resembles the chemical structure of other substances that have been described as being able to protect living cells against osmotic stress.
  • (15) Recognition and prompt treatment of this potentially fatal dermatological crisis is stressed.
  • (16) In this sense, there is evidence that in genetically susceptible individuals, environmental stresses can influence the long-term level of arterial pressure via the central and peripheral neural autonomic pathways.
  • (17) The stress-induced increase in ACTH and corticosterone secretion was potentiated by SG.
  • (18) The pathoanatomy and factors associated with transient mitral regurgitation (MR) induced by myocardial ischemic stress are unknown.
  • (19) We reviewed the pre-Vietnam contents of the service medical and personnel records of 250 Vietnam combat veterans, in an attempt to identify factors predisposing to the development of posttraumatic stress disorder (PTSD).
  • (20) Small and medium fish swim up when stressed, whereas larger fish swim down.