Freediving ( or free-diving ) is a form of underwater diving that does not involve the use of scuba gear or other external breathing devices, but rather relies on a diver's ability to hold his or her breath until resurfacing.

Freediving is a technique used with various aquatic activities.

Freediving is also a recreational activity, celebrated as a relaxing, liberating, and unique experience.

Sinus Bradycardia can aid in the sport of Freediving, which includes any of various aquatic activities that share the practice of breath-hold underwater diving.

The premier advocate of this type of freediving has come to be known as Chapuis Style Freediving.

In 2007, the Australian Bluewater Freediving Classic became the first spearfishing tournament to be accredited and was awarded 4 out of 5 stars based on environmental, social, safety and economic indicators.

In 1998 she competed in the Freediving World Cup in Sardinia, Italy, where she clinched the first place among the women.

Following his request, this dive was done without the supervision of the International Association for Freediving agency, from which Musimu dissociated since 2002.

For one thing, this is not a subject often discussed or analyzed.

But more important, and the thing which the casual traveler and the blind sojourner often do not see, is that these places and activities are often the settings in which Persians exercise their extraordinary aesthetic sensibilities.

Yet within this limitation there is an astonishing variety: design as intricate as that in the carpet or miniature, with the melodic line like the painted or woven line often flowing into an arabesque.

Yet often fear persists because, even with the most rigid ritual, one is never quite free from the uneasy feeling that one might make some mistake or that in every previous execution one had been unaware of the really decisive act.

`` Most often '', she says, `` it's the monogamous relationship that is dishonest ''.

If many of the characters in contemporary novels appear to be the bloodless relations of characters in a case history it is because the novelist is often forgetful today that those things that we call character manifest themselves in surface behavior, that the ego is still the executive agency of personality, and that all we know of personality must be discerned through the ego.

It is often stated that Copernican astronomy is ' simpler ' than Ptolemaic.

1543 A.D. is often venerated as the birthday of the scientific revolution.

But when these expectations are once too often ground into the dust, innocence can falter, since its strength is according to the strength of him who possesses it.

Next I refer to our program in space exploration, which is often mistakenly supposed to be an integral part of defense research and development.

The relatively long and often colorful selections in this anthology enable the reader to become genuinely absorbed in what is said, whether he responds with anger or applause.

The continuities, contrasts, and similarities discernible when past and present are surveyed together are inexhaustible and the one is often understood through the other.

It is true that this distinction between style and idea often approaches the arbitrary since in the end we must admit that style and content frequently influence or interpenetrate one another and sometimes appear as expressions of the same insight.

The volume is a piece of passionate special pleading, written with the heat -- and often with the wisdom, it must be said -- of a Liberal damning the shortsightedness of politicians from 1782 to 1832.

That he read some of the books assigned to him with a studied carefulness is evident from his notes, which are often so full that they provide an unquestionable basis for the identification of reviews that were printed without his signature.

The religious quest is often intense and deep, and there are students on every campus who are seriously wrestling with the most profound questions of meaning and value.

His neighbors celebrated his return, even if it was only temporary, and Morgan was especially gratified by the quaint expression of an elderly friend, Isaac Lane, who told him, `` A man that has so often left all that is dear to him, as thou hast, to serve thy country, must create a sympathetic feeling in every patriotic heart ''.

Without a precise knowledge of Germanic philology, however, it is debatable whether their use was not more often a source of confusion and error than anything else.

Youth may be, and often is, skeptical, cynical or despairing ; ;

Although Patchen has given previous evidence of an interest in jazz, the musical group that he works with, the Chamber Jazz Sextet, is often ignored by jazz critics.

He is forced to play for little money, and must often take another job to live.

A call for action `` before it is too late '' has alarming implications when it comes from a man who, in his previous reports on the schools, cautioned so strongly against extreme measures.

While this may well be true in general, I believe it is also important to keep in mind that some recent developments suggest that over the next year or so military electronics may be one of the most strongly growing areas in an economy which is not expanding rapidly in other directions.

Whereas the usual organic surface-active agent is strongly sorbed at oil - water interfaces, the highly charged ions are most strongly sorbed at interfaces between water and insoluble materials exhibiting an ionic structure ( see Table 26-2 on p. 1678 ).

The principle of `` bills only '', or `` bills preferably '', seems so strongly accepted by the Federal Reserve that it is difficult to envision conditions which would persuade the authorities to depart radically from it by extending their open market purchases regularly into long-term Government securities.

Finally, there is the question of how strongly an expressed opinion is held -- whether it is a firm opinion or one that the respondent favors only slightly over the alternatives.

Sprinkel strongly refuted the current neo-stagnationist thesis that we are facing a future of limited and slow growth, declaring that this pessimism `` is based on very limited and questionable evidence ''.

The reason for chlorhexidine effectiveness is that it strongly adheres to surfaces in the mouth and thus remains present in effective concentrations for many hours.

" Christie strongly implies that this " quiet retreat in the Ardennes " near Spa is the Poirot family home.

Economic activity is strongly linked to the United States, with which American Samoa conducts the great bulk of its foreign trade.

* Arminianism is Pelagian ( or Semi-Pelagian ), denying original sin and total depravity – No system of Arminianism founded on Arminius or Wesley denies original sin or total depravity ; both Arminius and Wesley strongly affirmed that man's basic condition is one in which he cannot be righteous, understand God, or seek God.

The Platonist seemed to outweigh the Aristotelian in Alan, but he felt strongly that the divine is all intelligibility and argued this notion through much Aristotelian logic combined with Pythagorean mathematics.

Following screening of antibacterials against a wide range of bacteria, production of the active compounds is carried out using fermentation, usually in strongly aerobic conditions.

The current is strongly constrained by landform and bathymetric features.

After studying the circumpolar current it is clear that it strongly influences regional and global climate as well as underwater biodiversity.

This case is politically distinct in the sense that the government of Israel-which strongly denounced other cases of Aircraft hijacking-endorsed this one and declared its participants to be heroes and martyrs for the Zionist cause.

Whilst the magnification of both the field ion and atom probe microscopes is extremely high, the exact magnification is dependant upon conditions specific to the examined specimen, so unlike for conventional electron microscopes, there is often little direct control on magnification, and furthermore, obtained images may have strongly variable magnifications due to fluctuations in the shape of the electric field at the surface.

Amok is often described as a culture-bound ( or culture-specific ) syndrome, which is a psychological condition whose manifestation is strongly shaped by cultural factors.